Haha I'm still holding out for laptop manufacturers to start providing bioses like pcs once it gets mainstreamed enough that people want it. Better yet, scratch laptop mobo's and chasis to build our own laptops, with mxm video cards.
Did manage to overcome that issue though a lonnnnng ways back, but it was a friend and I ripping this thing apart and putting all the components onto a huge test motherboard at the university to get it to work, but that was years ago and it literally barely worked. But we could overclock a t7600!! Upon attempting to do the same to my laptop, it died quite quickly, and warranty parts were on the way.
So you can oc it, if you have a custom bios, easy to mod pll IC, and a chipset that can support past 667mhz.