Don’t want to plunk down $99 a year to join Apple’s Dev program, but still want a small taste of the just-announced OS X Mountain Lion? Apple has just released a Beta build of Messages, which will replace iChat as OS X’s go-to text chat app. The most notable feature: iMessage support. Now you can drive all your friends nuts by texting their iPhone/iPod/iPads waaaay faster than they could ever respond. [Source: Apple]