Missing USSD support being a HUGE oversight by the largest PHONE manufacturer in the world... My cell phone from 2001 (yes, 9 years ago) supports USSD "out of the box". It's a 'feature' you EXPECT from any phone in the market these days, and Nokia gave NO indication that support for it was missing in their marketing campaign (again, assuming that the majority of N900 customers do NOT frequent these developer-oriented forums..)