Wow, that just took me back a good 20 years. Did you guys have the plastic Voltron that could disassemble to the separate tiger-guys or combine into Voltron? Best. Toy. Ever.
InvisibleShield uses a film that has a severe orange peel effect and weak adhesive. Full disclosure: I am not unbiased (I own this company, but I can tell you InvisibleShield is not the best solution out there.
Probably about 45 minutes? I love the phone, but I realized I was actually getting less done when I have access to a PC but I use my phone instead. I try to do anything I can do on the PC just for speed's sake.
Also haven't found any really addicting games lately. :)
Definitely a matter of opinion, but I think Apple's design guys do far better than most case manufacturers. That said, it's sad to see a broken screen or major scratches because it was left caseless.