It's an old joke, I've always herd it by americans: - How do you call someone that speaks two languages? - Bilingual - How do you call someone that speaks three languages? - Trilingual - How do you call someone that speaks one language? - American.
No pun intended. It's a joke.
But, I'm always amazed by US-based web start ups that don't support unicode. Why think small?
I'd happily switch to Pownce, IF I could write in Greek. Unfortunately, I can only write in latin1, which leaves out Greek, as well as Cyrilic alphabet, Japanese, Chinese, Arabic, etc. I stick to twitter.
I'd give a chance to Yahoo! Mail -if UTF-8 support didn't suck so much. GMail, GMail, Gmail.
I'd base a web TV channel I'm involved in (with a possibly huge audience in Greece) on Brightcove -if only I could write video titles and descriptions in my language. I'll have to put up with YouTube's limitations.
Oh, well. On the other hand this leaves a lot of space for some competition :-)