I have an RSS reader-type app that I’m running through instruments and I’m seeing alot of allocations from RIPZoneDataAlloc:

What does RIPZoneDataAlloc do exactly?
Also after maybe a dozen page transitions including alot of UIWebViews, I’m seeing almost 10mb live bytes. If I run leaks I see trivial leaks. Does 10mb sound like an issue? Does it indicate that I’m doing something wrong?
RIPZoneDataAlloc is apparently responsible for a high amount of memory allocations, especially those that deal with UIColor’s colorWithPatternImage: method, which is known to be a memory hog.
10mb is a perfectly reasonable amount of memory consumption for an application. I have a fairly complicated app that consumes about 30mb on average, so that’s perfectly reasonable. I’d be more concerned if your app was spiking memory usage at about 50-70 mb.
As for those leaks, they are trivial enough that you can ignore them. Mostly because you have no power to fix system-level frameworks.