i can run kismet on it, get packet injection working (hard to get the driver but whatever), play with 3-4 different operating systems (using a boot menu), replace the camera app with one that does HDR and burst mode with full manual settings, connect to msn,skype,jabber,irc,etc all at the same time... I've also got an IR transmitter, usb-host mode, fm-transmitter, front camera, 32GB storage PLUS SD-card. It comes rooted, and I didn't even void the warranty to do any of these things. but, yeah, it doesn't have a RETINA display or stainless steel call dropper bezel, or sweet "store" to buy DRM laden crap I probably already own 3 times. okay, no google maps app either, and it took nokia just about forever to get some basic stuff working like the pc sync.
Hopefully they sell a crapload of MeeGo devices next year, and drop Symbian soon, because I've seen the potential of this device. With some more developer support, it would truly be the best (for me). One really can't complain that the default stuff on the phone is slow or hard to use, it's more like a prototype they were nice enough to manufactre and sell at a loss. They did their best (with limited resources) to support, update and fix it, and we can upgrade it to a MeeGo device with a simple firmware flash in the near future if we want. Meanwhile, the community has been patching and replacing whatever Nokia code we can, whenever we think we can do a better job than Nokia's developers.
and no, you can't conect a sixaxis to your phone. it doesn't work as a standard HID, sony is lame.