Congratulations, Kris! You already know how happy I am about Marvin. :-)
Apple couldn't have chosen a better day for pushing the update out, though - it's my daughter's birthday and I'll install Marvin on her iPad right now.
Meanwhile, I've updated the comparison in Wikipedia (link in my signature) and my review in the AppStore (*there* I did let my enthusiasm show :-) ).
Great job, Kris, thanks, and I'm looking forward to working with you again!