I think what Florob meant was a <30 lines implementation for technically sending/receiving location via XEP-0080.

That's no use at all ATM. Sending yes (given the other party uses Empathy with Geoclue enabled), but receiving stll needs some UI to actually display the user's location - which is more work.

People will not feel the need to code this as long as major desktop clients don't support in out of the box so they see what it does... and how it could do the same on the N900.

My hope is that this will happen once Ubuntu adds Geoclue support, which I think is scheduled for Lucid Lynx.
The only sad thing is that Ubuntu will lead they way and N900 will follow... I'd rather have it the other way round.