BlackBerry Torch 9810: Can I get some help with a few questions?

Hello CrackBerry i have a few questions about this legacy phone:

1) If i buy a 64GB Micro SD for this phone, Will it recognize it or just dont work?

2) I already own a BlackBerry Z10 but if i register my Torch with my BlackBerry ID will i be able to use my BlackBerry ID in both devices or just in one?

3) What is the apps you reccomend for this phone, paids and free apps.

Thanks for take the time in answering my questions.