Back to the Mac: OS X 10.7 Lion Review
by Andrew Cunningham, Kristian Vättö & Anand Lal Shimpi on July 20, 2011 8:30 AM ESTApple introduced the Mac App Store (MAS) in its Back To The Mac event last October. It was released to public on January 6th and was automatically included in the 10.6.6 update. It’s obvious that the MAS is a spinoff of Apple’s extremely popular iOS App Store. While the MAS has been available for over six months now, Lion will bring some healthy improvements.
First, there will be support for in-app purchases. Since Apple does not allow trials, this is mainly useful for applications that can have additional commercial features or are subscription based.
Second, developers can now send push notifications to alert users. As in iOS, the usefulness of this feature varies from app to app, but the presence of third-party plugins like Growl speaks to the demand for this sort of thing.
Third, app updates are now just patches instead of full copies of the app. Apple refers to these as "delta updates," which is the traditional development term for an update delivered by replacing only the changed files/bytes in a application. In Snow Leopard and in iOS, you had to re-download the whole application to update it. That was very inefficient, especially if you were updating a bigger app. After iOS 5 comes out this fall, both it and OS X will feature app updates via patches, just like most other programs have been doing forever.
On a technical note, the structure of OS X application bundles makes them fairly well suited to these kinds of updates. But it's not clear at this time whether Apple is replacing whole files or doing binary patching to minimize the update size. Valve’s Steam service recently transitioned from doing file replacement to binary patching for this very reason, as games typically use a handful of large archives to store their content. For regular applications the difference is subtle, but the difference will have an impact on games distributed through the MAS.
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VMFnet - Friday, July 22, 2011 - link
I just installed Lion on a OCZ Vertex2 SSD and it still doesn't support TRIM. I guess support for this feature is limited to stock Apple SSDs only.Sapan - Friday, July 22, 2011 - link
Thanks for the reply. It is a shame that there still is no TRIM support.In the mean time I would recommend checking out a 3rd party program called TRIM Enabler:
http://www.groths.org/?page_id=322
Though the program is designed for Snow Leopard it works for Lion, but they are making a new version for Lion.
mdlam - Friday, July 22, 2011 - link
I love how these diehard Apple fans are trying to resolve their discomforting feelings of exorbitant expenditure to Apple byA: Unreasonably denigrating other competitive alternatives.
B: Exaggerating the usefulness of certain proprietary tools.
C: Empathizing with the company's goals/missions/values
All to resolve the realization that they are paying more money than what they are getting, which is...
A totally outdated OS made to look streamline
A pretty cool looking computer that uses tunnel fans (which are extremely loud) and likes to overheat.
I used Snow Leopard on my Mac Mini for about 2 months and hated it. I think people force themselves to like OSX just because their laptop looks cool.
Horrible graphics speeds. Their BEST video card that you can fit into a their $4500 Mac Pro, is a ATI 6500 series, which is like a 100 dollar card, and offers pathetic performance for gaming--I had a 6950 2gb and that was barely enough. You can argue that Mac pro's should be used for graphics design and other things and not gaming. If that's the case I don't see why they don't put a FireGL or other designer cards in. In any case, who buys a $4500 computer that comes with a bullcrap video card? Some people are IDIOTS.
mdlam - Friday, July 22, 2011 - link
Edit: A $170 dollar video card, 6870 1gb...Which is a complete piece of garbage card that is 30% slower than the 5970 1gb. Guess how much the upgrade is? $200.Post is based off of cognitive dissonance theory
parlour - Monday, July 25, 2011 - link
Macs don’t seem to be the right choice for you. That’s alright. Just don’t claim that everyone else has the same needs as you.sjinsjca - Saturday, July 23, 2011 - link
The test with the SSD is intriguing but there's a possibility that the FileVault performance hit might be less in the case of a conventional hard disk.Reason: hard disks are slower than SSDs, so there would be more idle states in which the OS could be performing encryption/decryption tasks.
Worth a spot-check.
EnerJi - Sunday, July 24, 2011 - link
That's a great point. I'd also love to know if the performance impact decreases with an HDD.johnmacward - Tuesday, July 26, 2011 - link
What annoys me is the fact that the recovery partition doesn't keep a copy of the Lion installer for instant re-installation - and with a bit of Apple magic even a copy that updates as the OS updates.A download each time is a possibly expensive prospect considering we all have data caps of some kind.
It also turns a reinstall into a shockingly long 4 hour job which is a major pain.
luca108 - Tuesday, July 26, 2011 - link
Small detail, but in the review you said you could only launch Launchpad by clicking the dock icon or using spotlight, but you can also set it as a hot corner. This is what I personally do... top left corner set for Launchpad and I can quickly get in and out of it to find my apps and utilities.I'm not suggesting it's quicker than using an apps stack on the dock... actually, its the exact same. But it definitely is faster than clicking the Launchpad dock icon or using spotlight to launch it.
Thrakazog - Tuesday, July 26, 2011 - link
Does anyone know if Lion extended trim support to 3rd party SSD's, instead of only the ones apple provides ?