Take my advice: Don't buy any of the phones in thuis forum(Tipo, Miro, J, E). Truth is that they suck balls. If your mother wants an Android device, you might want to consider cranking up your budget. If the OS doesn't matter, go for the Nokia Lumia 520! I think everybody in this specific forum will agree with me...
Please listen to my advice!
But if you really, really have to purchase a J, every mod should work(assuming it's properly ported to the J).
Again, listen to my advice.
The J will lag. In everything. Not just games, and multitasking.Everything. Be warned. Be prepared.
Sorry, a bit dramatic, but can't make it any more clear.
Good luck with your(mothers) choice.
Sent by magic!
I'm back! Xperia E owners: be prepared for upcoming awesomeness