I believe I've found a solution... It works currently under facebook ios 5.0.1 for iPhone.. haven't tried it in iPad yet.
The url is fb://profile/132753734806
NOW the important part is that number. That links to one of my clients, Charles Scott. HOWEVER, that's not their FBID or Page ID.. their Page ID is 10150348920319807
so you would think it should be fb://profile/10150348920319807 but that gives me an error.
Here's how you get the correct code.. click on any of your page's photos.. here's an example for my client https://www.facebook.com/photo.php?fbid=10150348920319807&set=a.10150348920314807.356942.132753734806&type=1&theater
if you notice the FBID that does not work follows fbid= in that URL.. the number you WANT is just before the &type=1theater but following that last period. 132753734806 is the correct code to punch in after fb://profile/
I hope that makes some sense... I know zero about code or coding but this was bothering me so much and I knew there was a way.
Now, the two questions I would love to have answered/working.. 1. if this could work on android phones 2. create a working qr code for this url so people can scan with ios devices and have it open automatically
Good luck and I hope this helps everyone!