Is it not time to implement a mobile version of the site?
- browsing experience
- greater availability
- more traffic
- txtspeak answers
- fewer ad impressions
Two mobile projects are already out there using the Stack API (links are to StackApps project page):
Both use the Stack API, which is currently read-only, so no asking/answering/voting is currently possible.
Yes, I'd support a full mobile app as you suggest, but hopefully these will tie you over.