Mac OS X 10.7 Lion is being tested internally at Apple, according to reports.
The TUAW website claims that "trusted sources" have revealed that internal testing began last week and that the company is nearly ready to officially launch its next generation OS. TUAW even speculates that Apple might make Lion available during the Worldwide Developers Conference (WWDC).
Earlier this month, reports emerged suggesting that Mac OS X 10.7 Lion would launch through the Mac App Store.
Apple issued a third Developer Preview a couple of weeks ago, complete with the Reading List function enabled. Reading List is similar to the iOS app Instapaper and suggests that Apple is remaining true to its promise that Lion would see elements of OS X and iOS brought to the fore.
Other new features first seen in Developer Preview 3 included new wallpapers, a new boot animation and new graphical elements in the Finder toolbar.