> Sony Ericsson launches Android Market apps channel.
> Apple targets frozen screens, security fixes with iOS 4.3.2 update.
> Nokia vows usability enhancements with new Symbian update.
> LG latches onto MeeGo after Nokia support dims.
> Report: App maker UberMedia plotting Twitter platform rival.
> RIM chiefs counter PlayBook tablet criticism ahead of launch.
And finally... Scientists recommend technology diet.