Multi-tasking with WebOS is so obviously not superior that your opinion baffles me. Hitting the x is not at all unnatural. Everyone has used computers that way for many years. Besides, you only need to hit the x to close apps, not to multi-task them. And I never need the stylus to do it anyway, my big fingers work fine.

I actually like the way Maemo organizes multiple open apps better than WebOS. Hitting one button for access is faster than flipping through cards. Just doesn't look as cool.