We were considering an article on this topic, but our own Lex Friedman had already worked through the possible options for an old iPad in an article for Macworld. So if you’re pondering what to do after upgrading to an iPad 2, check out his advice. follow link
Turn Off Filename Extension Warning
In Leopard, Apple fixed an annoying aspect of working with the Finder in Tiger. Previously, if you changed a file's extension, the Finder prompted for confirmation. But since no one has ever accidentally changed a filename extension, Apple thankfully added an option to turn that warning off in the Leopard Finder's preferences. Choose Finder > Preferences, and in the Advanced screen, deselect Show Warning Before Changing an Extension.
- ExtraBITS for 14 March 2011 (14 Mar 11)
What to Do with Your Old iPad
Luckily, there's no need to deactivate an old device or anything like that; apps are tied to an iTunes account, not to individual devices. (iTunes accounts are tied to Macs, though, so if you ever get rid of a Mac, it's easiest to choose Store > Deauthorize This Computer before you reformat the hard drive.)