Even if the Vita never got another vote this month, it would still be the second best month on record for it, and about double last month's score. And at the current rate, it can shoot for being the #1 platform of the month. It's almost as big as the 3DS and Wii U combined. It's rise has been sudden to say the least.
Just as fascinating is the performance of individual games. Killzone Mercenary has had a dramatic increase, even by the Vita's high standards. Pokemon X/Y is doing very well, and is in 3rd place. Conversely, GTA5 is doing relatively poorly, below Tearaway even when combining platforms.
I don't expect these changes to be as pronounced in the final results. A lot of Nintendo fans in particular vote later in the month. But for the Vita to be doing so well so suddenly is very eventful.
Love and tolerate.