When I first endeavored to build Baby Stopwatch, the only real point was to build any Windows Phone app and get it published. I get reimbursed for the app hub membership (some day), so why not? It involves very, very little code. So far it's had around 230 downloads, which actually seems pretty good considering there are already 4,000 or so apps in the marketplace. It's also generating around 50 cents a day with its ads.
I would still like to build something more involved for it. I'm not sure what, but something that's connected would be interesting. At this point though, I think there are other things that are higher priority, like getting the forum done. I'd like to do that before the end of the year, though I realized today that's not very far away.
Red Delicious is having a good time with her Windows Phone, as am I. There are some quirks, but we're still digging it overall. I'm pretty confident that, as long as they continue to market it well, it will gain market share over time, especially when models are available on other carriers in a few months.