Some people have gotten it to work with 1280x800 (and other widescreen resolutions) on other laptops, but I haven't read anything about a 700m working, .1280x768 is liveable for me, as each bar of the pseudo letterboxing is only about a 1/4" at that resolution, a little bit annoying, but nowhere near as flagrant as 1024x768. I believe the patch is executed by giving it your own resolution, but i tried for about an hour to get 1280x800 and couldn't get it, no matter how i patched or what modelines i used - it just wouldn't take. And the kicker is, you have to have the patch in your init somewhere, as it must be applied every time the system is booted (and before you start X) (since the patch only affects the RAM copy of the VBIOS).
Nevertheless, much luck to ya'll, if it can be done, let me know.