Paranoia... You guys been hanging out around abovetopsecret.com forums? Hahaha!

Even years back when iPhone/3G was out, you could change the imei number, but it was only superficial. It displays a different number, but actual hardware number was not changed.

Nokia site: I have entered 123456.... Blah blah and downloaded and it worked fine. The imei is not set in the software iirc. I have used random numbers and my imei is always the same.

I'm sure it could be spoofed like the old iPhones. But if you are getting calls dropped - sell your phone for parts and I will sell you mine N900.