Update on my Zagg install. The protector itself is great however the Black silicone case I have (bought at Verizon store) seems to be pushing at the sides of the protector and it's actually lifting it up a bit. This could be a problem. I love this case though but I may have to find an alternative if it continues.
I have the same setup as you, and i actually had the Zagg rep (Mall Kiosk) install the Invisible Shield for me. I went to put the case on immediately after and it lifted up the Shield as you described. I showed the dude and he told me that i need to wait at LEAST 24 hours before i put the case on to give it time to cure.
Well, as impatient as i am, i did not wait 24 hours (only about 5 hours), and was very careful when putting the case on, making sure not to push up the edges. I was fairly successful at doing this, leaving one corner with a little bit of push back on the Shield.
After a few days, i've had to fight with that one corner a bit, using my fingernail to set it back down, but i think i'm going to be fighting this battle indefinitely. Not a huge problem for me, but it is a bit annoying.
Now, if the shield was put on perfectly straight (which it pretty much was by the ZAgg dude) then the Silicone case will actually come up RIGHT against every corner, and will not overlap. So, the only solution would be to either:
1. Get a new Screen Protector - The Invisible Shield is prone to lifting at the edges/corner and this cannot be helped, even if the case was not flush against it. I doublt you will find success with any of the rubbery type screen protectors (like Zagg), so you may want to try the Steinheil protector when it comes out.
2. Find a case that overlaps the edges a bit more so as to keep the Shield in place. Not sure if there is or ever will be one, but is the only other solution to avoid lifting.
For me, i'll deal with this setup for now until it gets annoying. Using a plastic Orange Peeler seems to work to get the corners to set down nicely without ruining the shield/case for now.
I'd like to get the Steinheil AF shield when it comes out, but like one poster mentioned above, it does detract from the clarity of the screen...
choices.