Hi, i was thinking on buy the surface pen, but on description says that only works with surface pro, anyone knows if this works or if there is a way to make this pen works on rt ????
No, it's not possible at all. The Surface Pro has two layers of touch technology: one for fingers and one for pens, while the RT only has the touch layer.
Any capacitive stylus will work of course. As for whether any clip magnetically I don't know. Some have the little clip at the back like a regular pen so you might find something in whatever case or bag you use to clip a pen onto. I think microsoft should release a capacitive stylus in the same form factor as the surface pro pen.