It's their blog. They're a US-based company primarily (although not exclusively) focused on US consumers. You can expect that to result in English blog posts, just as you might expect a French company dealing with some France-only consumers to post in French.

Sorry, my bad. When I said i18n, I didn't mean I expected them to post in other languages, but I expected them to mention geographical availabilities and what not.

Ah, gotcha. Didn't they say the plan to expand on August 15th? I'd assume they'd be announcing the availability outside of the SF private beta then.