Dream Big.
“Filling little gaps in another company’s product lineup is snatching nickels from the path of an oncoming steam roller.” - Platform vendors - Joel on Software
Joel has some good things to say on developers choosing which products to work on in relation to Platform vendors.
I believe it is important to dream big when you’re considering building an application on any Platform. If you’re looking at Facebook Platform or the Apple iPhone Platform, dream big. There are many incredible opportunities yet to be explored in virtually every vertical.
Today, the common conversation is around the many gaming companies building great things and becoming very successful. But, always remember that the gaming vertical tends to be the first one to fill out when new platforms enter the scene. Over time, big ideas (including games) are built into wonderful businesses.
So, as they say in England - mind the gap - and dream big.