For my blackberry curve i use a amazon kindel charger, so that one works.
there is no 8530.and blackberry's chargers work at any kind of blackberry
does instagram work on blackberry 8520
Blackberry bold is better for work but if you just want for a normal phne i would choose the curve
yes
Yes, the Global Slim Card will work on a At&t blackberry curve. Yes, the Global Sim Card will work with no problems in your AT&T Blackberry Curve. Simply use it as you would any Sim Card.
yes
yes
No
BlackBerry Curves, in their default state, do not have flash. Sorry :/
will there be a blackberry curve 4g?
no it can't
Blackberry curve 9320