ipad intermittently unresponsive on ios6.1, S/W issue?

[Tapmyapple]

ipad mini, posted here cause i want to see if this is a f/w problem. Can be doing anything in the ipad, using safari, email, and all of a sudden it be become unresponsive for around 5 secs and you have to hit the home button and reopen the app or wait it out.

 

[Skull One]

Since iOS 6.1 is a beta release, I would think anything is possible.