Tapatalk is a mobile forum app for iPhone / Android and soon to be on Blackberry and Nokia. Tapatalk supports vBulletin (3.x and 4.x) and phpBB forums and forum owner can activate this service for free. Tapatalk supports all the usual forum functions plus full screen image viewing, image upload, caching (less reload), private messaging, all these features are accessible in just a few simple taps. Tapatalk for iPhone: Showing New and Unread Posts: Full Thread Viewing and Pagination Support: See Who's Online: Reply to Post and Image Upload: Some of the large forums activated Tapatalk support Tapatalk for Android Total Android Look and Feel Same feature set as iPhone: Quickly Reply to a conversation: Latest and Unread Posts indicator and multi-tabs support: Full screen image support - support landscape mode also Check out http://www.tapatalk.com for more information!