Yup - that was me - 13 years old, with a stack of graph paper, a bunch of pencils, and a bag of funny shaped dice. 100% pure gangsta!

btw the interface just popped up in my gmail account, so I tried calling my cell phone, and the caller ID on my cell phone showed my Google Voice number, so perhaps these services aren't so distinct. Maybe a gmail user who doesn't have a Google Voice account could chime in.

Can't, don't, or don't yet? With google voice, they're two trivial steps away from letting wifi capable phones call and receive calls anywhere in the US (and probably elsewhere) for free, with no SIM card installed, even - 1) set up a SIP gateway and allow (android/iOS,etc. or computer based) softphones to connect it to it using Google's existing authentication bindery, 2) allow Google Voice users to direct calls to the gateway (and 3), I guess, create user interfaces (Android, etc.) for making calls that are more convenient than their website tool). I don't see a business model there, but it would be really cool

You can string this stuff together with GV and other existing services, so I know it works :)

-- you actually managed to give away equipment without getting tech support calls about it every week for the next 5 years? Please provide more details.

what's the impact on my power bill of a bunch of these little things?

yeah - my 64 gig SSD in my little Atom powered Debian box surely accounts for the main part of my flash memory. The rest is SD cards.