It is still a bit distant for a Tour 2 since the Tour has only just been released. Not sure whether people will want to wait for another year if they current contract has already ended. But talking about rumours there is also one that suggest BlackBerry App World 1.1 will allow users to install apps onto memory cards (http://www.berryreview.com/2009/07/28/blackberry-app-world-1-1-coming-soon-interesting-new-features-in-documentation/). The currently OS 4.x doesn't allow this yet. But RIM is about to push out OS 5.0. Who knows what will happen?
Rumor has it that BB will be coming out next year with a version of Tour that has WiFi and more on board memory. I don't think 256mb of memory and the fact that you can't put apps on the expansion card on the original Tour is a good thing. I'd like to get opinions on waiting for the new version instead of getting the current one.