Great product if it works! Bluetooth will not connect properly. Tried on a Hero and N1 seems lots of people other than SE phones have this issue. You will spend at least a quarter or half your battery trying to get this device to work. Very frustrating especially as Song say they will not update the firmware to fix the issues!
I have got it to work twice and it works very well and is very cool with all the extra apps you can download.
Battery is pretty poor to 4 hours half a battery left, i give it another 3 hours till it dies. Also keep in mind its not even connected to the phone so one can only imagine how bad the battery can be!
Unless you have a SE phone dont get it, it just wont work!