N73 has a new firmware update, and apparently there are lots of improvements.

Nokia has released a new major (SW v4.0) firmware update for Nokia N73. Firmware 4.0723.2.0.1/06.06.07 is already available and supported via the NSU (Nokia Software Updater) and will be available progressively at the official Nokia Points and Nokia Service Points in the next few days. As usually, this release should improve the Nokia N73 performance as well as fix known bugs and problems from previous versions.

via Symbian-freak