Cell phone camera apps, which ones do you like best?

Like the ad says, more pictures are taken on iPhones than any other "camera" on earth. As you have seen here hundreds of times Johnny always carries his camera around because, well, you just never know what you may come across. But what of the apps that allow one to take stylized pictures? They can do so many things to spruce up a regular image. Case in point here are two pictures Johnny took today down on the river:

So dear readers, which filter or filters do you like using? The ones above were taken using the Lo-mob filter but Johnny also loves working with Photo Toaster and a Fisheye camera app. Feel free to share your ideas and links to pictures iffen you'd like to in comments.