Well, if you can still play with it, it's not "locked." The Preferences icon looks just like the one in Leopard, at least on the iPhone. One of the problems, for me, anyway, is that there is no "Columns" view on the iPhone, probably the same on the iPad. Icons are pretty, but they tend to sometimes be poor at displaying what app they are for or what that app might do. Steve's 'solution is to make them humongous (512 x 512 pixels). That would be fine on the iPad, but on the iPhone, they are more like 36 x 36! Text is extremely easy to read on the iPhone and can usually supply pretty specific info...turn the thing to landscape and it could display most of what can be seen on a small laptop screen! Oh well...
I may get to actually touch an iPad in a few weeks. My California son, is supposed to meet up with the rest of our family in central Missouri for a mini-reunion out in the farmlands. Of course, even cell phone use is spotty, so I don't expect much fancy stuff that requires interweb use out there...