When I bought my Axim x51v - I specificially asked the Dell salesman 3 X's if it came with mobile 6 and each time he assured me that it did. He Lied. He didn't even tell me that mine was one of the last to be made.
Thus when I found out about the Football edition then Lenny's - I hummed and hawed for a while then took the plunge. I am now using Lenny's 6.1 beta 5 Lenny's edition [he has 3 - bare bones, dell stock and Lenny's beta 5's].
Thus with the $500 for the Axim with acc.'s that I bought from Dell - I have no qualms about using mobile 6.1