Not, “put this on my iPhone now” good but “wow, that’s interesting and must’ve taken a lot of hard work” good. Lifehacker explains:

You can now grab the theme via an app on Theme Outlet. Here’s how. (And make sure you have Dreamboard installed, as this is a Dreamboard theme and requires it.)

1. Open Cydia
2. Tap Manage Sources
3. Tap Edit, then Add, then add source fnetdesigns.com/cydia/repo
4. Go to the Changes section and install Theme Outlet
5. Close Cydia, go to your home screen, and open Theme Outlet
6. Browse for OS X Ultimatum and download it from there
7. Open up Dreamboard, browse for the OS X Lion Ultimatum theme, and install it.

Related articles

• Hackers slap Lion overlay onto iOS, with surprisingly good results (9to5mac.com)
• Chrome gets Omnibar history sync, Lion multitouch gestures, more (9to5mac.com)
• Cydia tweak brings webOS-like card switching multitasking to iOS (9to5mac.com)
• Cydia tweak adds speedometer to stock iOS Maps app (9to5mac.com)
• Apple seeds OS X Lion 10.7.2 Beta 3 (11C43), iCloud beta 9 and iPhoto beta 3 to developers (9to5mac.com)