Then get a phone with a broader users base.
A small market still produces high development and maintenance costs per item and I am not even certain if those 3 £ are covering all the efforts of porting and maintaining it for the N900.

The alternative is that no company takes the risk of developing commercial games for a new platform as the revenue is tending towards or below zero which in turn will not attract Joe Average to the product.

We have seen lots of great platforms in the past which suffered from the chicken/egg problem: No software => no users. No users=>no revenue hence no software.