Sony has released a new Vaio bluetooth laser mouse. While the mouse does not allow for game control, its specifications specifically mention that it is possible to enjoy it with the PS3 for browsing.
<blockquote>Sony has recently released a new multi-function Bluetooth laser mouse with it's new Vaio X, CW and L range of laptops. The new VGP-BMS80 can:
• Dual function of PC remote control and multi-function laser mouse
• Remotely control PLAYSTATION® 3 to enjoy web browsing (No game control available)
• Software keyboard to input words easily</blockquote>
News Source: <a href="http://www.ps3center.net//news/4010/sony-release-ps3-compatible-bluetooth-mouse/" target="_blank">PS3Center</a>