Ivan. It brings to mind Ivan the Terrible, but trust me, my 3GS is not terrible. It's amazing, in fact. (I am a history teacher, in case you were wondering)
My car is Yuri, so I guess I'm keeping the Russian name tradition alive.
I think I shall name mine.. well when i get my new one this weekend.. um.. Milford Cubicle. or maybe bubble trumps (which i feel the unnecessary urge to say in a british accent.)😛
I used to name various iPods after the colors they were--my black Classic was Blackbeard's Delight, and my first white nano was "Gr8 White: NOOOOO! THE FLAMES!" Sure, it was in poor taste, but it made me laugh.
no iphone but itouch and I've named it SPYTHUMB (not case sensitive or boring) also whenever I'm very active on my touch I've gone "Thumbular" oh the life