Tinkering is hard wired into the human brain. Lockouts are just another level of challenge. I strongly recommend Neal Stephenson's essay/book In the Beginning Was the Command Line. He presents a very good argument for why the proprietary OS business is unlikely to remain profitable for much longer. Reading that book saved me from falling prey to the siren Apple. I was shopping for a new laptop and considering a switch to Apple. Why not? Everyone I know that has one just raves about it. So there I was, sitting in a glitzy Apple showroom, surrounded by shelves of really cool stuff, fingers caressing an elegantly designed wafer of plastic and silicon...and I recalled Stephenson's rap about Apple and MS selling a vision. It's Disneyland. You want to tinker, don't go to Disneyland.