I’ve just installed WPtouch 1.9.8.1 (ZIP) which was released on Feb 9 and I really like it:
More than just a plugin, WPtouchTM is a mobile theme for your WordPress website. Modelled after Apple’s app store design specs, WPtouch loads lightning fast and shows your content beautifully, without interfering with your regular site theme.
WPtouch automatically transforms your WordPress blog into a web-application experience when viewed from an iPhoneTM, iPod touchTM, AndroidTM, or BlackBerry StormTM touch mobile device.
via WPtouch: Mobile Plugin + Theme for WordPress » BraveNewCode Inc..