Martel says he's continually updating even the older versions of reMovem. Just last week, he added OpenFeint's leaderboards and achievements to the app, and he's been surprised by the results. While he's only seen around 10% adoption (only about 10% of his users have created OpenFeint accounts and used the features), his OpenFeint players are extremely dedicated. Some of them, he says, have already beaten the achievement for scoring a million points in a single game (something it took his wife a few days to do).
As much as OpenFeint has worked for him, however, Martel says that it's a "total win with Game Center" for his games. Apple's service will allow every single one of his users to already have an account on the service (since it'll be tied to iTunes accounts), and since he doesn't use much but leaderboards and achievements, he says "there's not a whole lot it doesn't do" that he wants.
iAds is another story ... for now. Martel currently serves up ads in the free version of reMovem with a third-party mobile ad company, and when iAds comes out, he'll be looking closely at Apple's network to see "if one is a clear winner" or not. While he's a little worried about having technical issues with iAds -- "it's like a black box," he told me, "there's nobody to go to when it fails" -- he is intrigued by the cross-promotional opportunities in the service, which will allow him and other developers to spread the word about their apps through iAds directly.
One thing Martel isn't so cautious about is price; the original version of reMovem is 99 cents, and the iPad version is free and ad supported. Martel says that it wasn't a "huge investment" to get the ad ported across, so he wasn't worried about pricing that version of the app higher. I asked him what he thought of other developers who said that prices on the iPad needed to stay higher to avoid the "race to the bottom" that was seen on the iPhone, and Martel disagreed. "I think that ship sailed," he told me. "There's going to be the equivalent of the race to the bottom on iPad, too."
There are still opportunities for him to make money; he included a "theme" system on his iPad game, and he built in the opportunity to sell themes via in-app purchase in the future. He's also considering an opt-out purchase to get rid of the ads, as that would offer people who were willing to pay a chance to show their support. However, he also says that he wants the biggest audience he can get, so cheap and/or free is where he wants to be.
Martel says that his app is popular because he was able to get this idea on the App Store first, and it's a simple game that "people can relate to." He hasn't had a lot of support from Apple. In fact, they actually featured an app by one of his competitors that he felt didn't execute as well as his app did. His app is popular, though, and he seems committed to bringing out regular updates that answer some of the bigger customer requests he's had.