This is a fun app and I give it a good rating because it is quite entertaining.... I do have a few suggestions though:1) It would be great if you could control Roomba with the gyro, using your finger to navigate gets in the way on such a small screen, tilting whichever way u want to go would be much easier (and easy to implement)2) Multiplayer - I'm sure they must have thought about this and not included it for a good reason but I'll mention it anyway as an obvious way to make it more fun.3) More types of enemies / friendly's - the first few levels are very fun because they introduce new enemies / obstacles / things to help you along the way. But after that, it's boring and repetitive. Introducing new things or just taking what you have and introducing in a more gradual manor would be more engaging.4) Don't charge money for something that's done for marketing purposes and helps your brand. Ya, you have the free app, but you should make the entire thing free because the more people who play it and enjoy it, the more likely they are to buy a Roomba... IMO, you'd probably add to your bottom line MORE by making it free because a single Roomba sale is equivalent to roughly 350 app downloads (assuming average margins in your industry). Also, make the app fit your brand image better. This was clearly designed by a third party who did not brand it like an iRobot product.For those interested in buying a Roomba, I got a modded one at roombafied.com, I LOVE it because it works better than the original product that has some flaws in the way it's built (do some research and you'll see what I mean).

Wow ! Didn't expect any less from iRobot! Great job guys.