The Variables Stars [1] and AstroClock [2] iPhone apps are now available for free. Thanks, Diatom [3] software!
Links:
[1] http://itunes.apple.com/us/app/variable-stars/id405791918?mt=8
[2] http://itunes.apple.com/us/app/astroclock/id408289011?mt=8
[3] http://www.diatomsoftware.com/
[4] http://www.aavso.org/category/tags/front-page-news
[5] http://www.aavso.org/category/tags/software
