Check out their new 7 plus sensor.....it's smaller and the receiver is tinier than the G4 receiver. You might like that too. I'm looking into both devices now.
As far as integration...I agree with you and it would be great....but here's why I see their integration not being so simple - and their being delays with approval.
For one with integration, the Insulet runs the liability of users falsely assuming that "what #'s they see on the CGMS is where they are currently for BG values" and improperly bolus themselves and that would be dangerous. It could get messy if a user gave him/herself too much insulin because "that's what my pump told me!!". I'm sure Omnipod's legal team would have a provision that would free them from this liability however.
Also, integrating two devices means tougher challenges supporting the device when the system crashes. Maybe it could be done.
And I agree with you about the Omnipod form factor. It's weak and stuck in a time warp! Where's the cool factor? I feel that they could attract more customers with a cooler user interface too. For one...the lighting on the Omnipod display is too dim (forget trying to read it on sunny days) and could be crisper, clearer. Maybe Apple's engineering team could help create a clearer screen and overall smoother button interface that isn't so akward (How about flat-screen displays). With all the software engineers today, it could be done. The other thing is their crappy software that downloads meter readings to for charts, graphs. I took the last one in to my doctor and she could not read it....And why isn't their software running on Macs as well? There are plenty of college kids, teenagers who don't uses PC's. Regardless, I'm sticking with Omnipod because the tubeless aspect is tremendous and I will still give them very high marks for making me feel less encumbered.