This is a neat little device. It has Debian Linux installed, so it's hackable by the linux community. First visit my Getting Started guide, then come back here. Here are some things to do with it:
Memory
The 770 should read up to 2 gig Reduced Size MMC cards. So, buy one of these:
1 gig
2 gig
and then run the whole system off of them:
http://maemo.org/community/wiki/howto_e … _mmc_card/
Internet
To access the internet, you have to either have WiFi (b/g) or a bluetooth phone that can be tethered to a bluetooth device, like this one. If you have dial-up, you will not get internet because the 770 does not have a modem.
If you have Cingular, you can do as I did to tether the 770:
http://www.dealminded.com/viewtopic.php?id=141
For GPS
First you'll need a GPS/bluetooth receiver:
Garmin GPS10 (sensor only) @ 118.62 shipped, the Deluo GPS @ 112.72 shipped, or the Deluo GPS with DVD @ 114.76. I've heard good things about both of these, but for your own peace of mind, as they are somewhat expensive (although about the lowest prices you'll find for this quality) buying from Amazon makes returns relatively painless. If you want a cheaper option, Geeks.com has some great prices on two units.
Then some GPS software. Either this commercial package @ $149 (US maps):
Buy this one--only one w/ US maps
OR the free version.
http://gnuite.com:8080/nokia770/maemo-mapper/
I have instructions for installing mapper @ http://www.dealminded.com/viewtopic.php?id=140
Skype/Telephoney
Skype does not work. But Gizmo does (see: http://www.dealminded.com/viewtopic.php?id=140).
Connect a harddrive, usb keyboard or Ipod (as a harddrive)
See my other post: http://www.dealminded.com/viewtopic.php?id=116
Other applications
http://maemo.org/
http://maemo.org/community/wiki/applicationcatalog2006/
They have a bunch of software ported over for the Nokia 770.
Warning
Some of this stuff requires the use of linux command line. There's a lot of people willing to help you, but it's not for the light-hearted. For some people, the Nokia N800 NSeries Internet Tablet
may be a better device, with webcam, faster processor, etc.
Also, if you're planning on using GCal (google calendar) and the like, you need to make sure the Opera web browser (the one on the 770) can use their javascript. If Opera can, the 770 can. If Opera can't, the 770 can't. By the way, GCal sort of works on Opera. Support should be coming soon though.
Help
I'm willing to offer what help I can, but there are some good forums as well:
http://www.internettablettalk.com/forums/
http://maemo.org/community/
Questions? Let me know.