You might also consider an Eyefi. The issue with that is it's supposed to connect to a (pre-configured) router. But perhaps if you create an adhoc connection with the N810 (devel_adhoc or create another) then it might work. I don't have one, so I couldn't tell you. Also this thread about ghetto eyefi solution: http://talk.maemo.org/showthread.php?t=13868 (note that is NOT what you want, just thought it was interesting while I was on the topic of the eyefi). Too bad such a thing isn't available in a mini-sd or micro-sd form factor or for that matter a bluetooth version.