indeed, we're wrapping the webkit UI of gmail mobile, which has standard gmail search baked right in. Our app lets you easily switch between multiple gmail and google for your domain accounts, gives you access to your iPhone's native address book, offline support, and a few other goodies...and there's a lot more in our development pipeline.

the entire feature process is similar to mailplane though: we look at mobile gmail and say "how could we take whats already there and make it beter" or "what's missing and how can we add it"?

Big upcoming features include things like HTML email reading and the ability to add attachments, both major features missing from Gmail Mobile.