I already own 2 Ipads, one Ipad 1 and a 3G. I bought recently a Ipad Mini and I returned it the day after because it wasn't running well: it started searching an application and never got to it while my Ipad didn't have any problems. The day after I went to another store and bought another one and it reproduced exactly the same problem. I will return it tomorrow.
My conclusion: DON'T BUY ANY IPAD MINI, THEY ARE NOT PERFORMING. THEY ARE ONLY A MARKETING EQUIPMENT.