Adam Pash, formerly of Lifehacker, recently switched from iPhone to Android, but his phone number is still tied to iMessage, preventing him from receiving SMS text messages on his new phone from iMessage users. According to Pash, Apple support informed him that engineers are working on a fix for the problem, but don’t currently have a reliable solution.follow link
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.
The iMessage Trap