The "world's first analog Twitter client" lets you tweet with the turn of a rotary phone dial. An Arduino platform inside the retro-looking phone chassis interprets your dial turns as letters in much the same way you used to have to keep punching keys on an alphanumeric dialpad to get the right letters when texting. To get an "a," for example, you have to dial 2 once; to get an "f," you dial 3 three times. Yes, yes, that's a lot of labor for 140 characters, but has tweeting ever looked so charming?
On the simpler side, you just have to hang up the phone to send your tweet. Tweets are then posted to the Tweephone's own personal Twitter account.
By the way, looking at this thing really makes me want to text my @angelheaded hipster friends about the 2cool new #Dylan album.