i also have a black berry,
i had a problem with the memory card but sometimes it takes a while to read, because you do take it a lot.
so i guess the answer is yes.
just take it out every once in a while, and not all the time.
Your memory card will be okay. i have a blackberry too... just to let you know you blackberry won't read any GB higher than 4GB because i got a 4GB and it does not read it. so your fine with a 1GB. i ALWAYS take mine out then put it back in...