All your apps are great. Every time I open one, I think it’s the best app ever, then I open another one and am even more amazed.
One thing that would be nice would be if you had more consistent controls between apps. For this one, in particular, I haven’t figured out how to get the menu to reappear after I hide it. It does reappear when I use multitouch, but I’m not sure what exactly I’m doing.