I switched from the Pre. I absolutely loved my Pre but the Evo just makes it feel old, cheap and small.
I love webOS but it just has to be on excellent hardware like the Evo. Hopefully HP helps palm make a super(duper) phone with webOS by the summer and I'll use my upgrade to go back to webOS...
I put the screen cover by invisible shield on and then put seido's platinum case from best buy on it. It takes a little effort so that you don't accidentally pull up the shield from the phone when you slide the case on.