@Kevin C The languages #51 through 100 are just on alphabetical and that's why Xojo is close to the bottom. For all we know, it might be number 52. Without the name change from "Real Studio" and "realbasic" to the new name of Xojo, it would never have showed up on the list. We just need to blog, and post and answer questions on StackOverflow and we'll be on our way up the list!
The name change to Xojo was a very good strategy to give the language it's own unique identity IMO. Too often colleagues of mine simply thought of Real as another basic clone without realizing Xojo is a very unique and powerful language in its own right. I can already see their attitudes towards the language is changing now that Xojo has a stronger identity.
I'm sure Xojo's popularity will continue to increase as their long term vision starts becoming a reality (e.g. LLVM, iOS, 64-bit, common framework across environments, etc.), which might be the push they need to jump into the top 50 on TIOBE.