I cut my old original iPad cover lid from the back of it, and slid it in my Piel Frama case for the iPad1, then slipped my iPad2 into it. It fits really good. I cant use the camera (which I'll never use anyway), and the side slot is just a *little* deep (you can still EASILY acces the switches), but I LOVE that leather ca$e and am thrilled I can use it for my iPad 2. Honestly dont think you would even notice its not a iPad 2 case.
I ordered the Piel Frama iPad 2 case on Friday when they sent me the notice, but canceled today after getting the new iPad to fit in the old case this weekend.
Cardboard my work too or any thin type material, but the lid from the old iPad works perfect and its black (and kind of sticky), so you cant see it if there was an edge towards the hinge.
Give it a try if you have a Piel frama iPad 1 case. Cant hurt! Fits nice and tight, and does NOT look hokey.
Most beautiful cases on the market (imho).
edit: I noticed that the center home button is a little off center as well, due to the bezel disappearing on the iPad 2, (making it a little less wide overall) but its not off center by much and you can still see the whole button with the case on.