Apple has posted a video guide to activating the iPhone, which resolves the last remaining mysteries related to Apple’s first wireless mobile device.AT&T’s iPhone rate plans will be $59.99, $79.99 and $99.99 for 450, 900 and 1350 daytime minutes, respectively. The $59.99 plan includes 5000 night and weekend minutes, while the other two plans come with unlimited night/weekend minutes. 200 SMS messages are standard with all plans. An additional $10/month will buy you 1500 SMS messages, and for $20/month, AT&T offers unlimited text messaging.An activation fee of $36.00 applies to all new accounts. All of the iPhone plans include unlimited data service for e-mail and Web browsing, along with unlimited use of “visual voice mail,” which is Apple’s on-phone GUI for voice mail retrieval.Relevant screens from the activation process follow. Software Development