[quote name='slidecage']yea i heard it does not even have a place to put the pen...[/QUOTE]
The DSI XL comes with two types of styluses, one that is like a pen and one that is a bigger version of the DS stylus... It has a slot under it to hold the DS style one, not the big pen.
That being said, I find I can play my DSI XL for longer periods of time than I could my DSL, but it could also be the comfort level of the big stylus that does it too.