Last week, the InMobi team (well... just me...) went to Twitter DevNest in London. It was great to meet so many interesting Twitter developers - and to hear on the interesting things they're doing. While there, I gave a presentation urging developers to look beyond UK/USA for revenues. By looking at some of the popular Twitter apps and websites which run our advertising, I aimed to show that there are great revenue opportunities all over the world - Indonesia, South Africa, Venezuela.
The main thing to remember is to internationalise and translate your sites and apps - Android has a great i18n framework as does the iPhone. Then submit your apps to local app stores. Remember - your customers are global; make sure your app or site works for them.