jonwil, hope you find much fun and enjoyment tinkering on N900.

While you stated these are beyond your scope of interest, I'd love to see someone take up OTR for telepathy, SSL for phone calls, or finishing tinymail's PGP/SMIME and making it available in Modest.

browserd supporting new versions of Gecko would be nice for security. Another potential perk is if new Gecko builds happen to support iPhone or Android Javascript touch events (touchstart and friends). This would make N900 a viable portable development platform for modern touch web-applications.