Voted as well, here's my comment that I've posted:

"Here's are reasons why should you port the application to N900 as well (at least since you guys are already porting it in qt).

There may be relatively less number of N900 devices out there but since it is a device for tech freaks, most of those N900 owners are well aware about installing applications, browsing web, making internet calls and buying apps. Those aren't the main reasons though. The main reason is that there are only handful of commercial apps available for it including messengers or social networking applications that significant fraction of N900 users will download and use the app. While in case of iOS or Android or Symbian or any of few other smartphone platform, there are hundreds or thousands of the apps that would do something similar to this app. That means only few will be loyal to the particular app. Let me tell you one thing, I was well aware of ebuddy while I was feature phone user or symbian user but I merely used it, installed it few times - yes but used it seriously - no. I had a lot more choices. But maemo world is hungry for quality apps from commercial developers as well. I don't know how you guys make money out of this app but if you have users that will stick to the app then you will be making more money, that's all I can surmise."