I've been using the N900 for about two weeks now. Never upgraded the firmware or anything. Today I was trying to take a picture with the phone. I opened the camera cover, the cam screen showed. By mistake I pressed the power button instead of the capture button. After that the phone went off. It has not powered up again. I tried removing the battery and putting it back. Initially it seemed to be heating up like anything. I took the battery out for a while and put it back. It's not getting hot, but it won't power on.

Do I need to send this back or is there something I could try?

When I connect the charger the status LED glows green (steady).