Thanks for your post Bea
Im not a tech so asking questions that could be irrelevant seems a bit stupid to me.
What i DO know is the site is still in development, and the key focus right now is on Normal Site usage problems, not so much luxuries such as mobile apps.
Thats not saying it WONT happen, just that things like stable servers, better user experiences and functions to make life here easier for the majority are considered more important.
I personally use an android phone.
I know it works fine on that and iphone's (in fact i believe you can go in to the chatroom on an iphone).
Sorry that the blackberry doesn't seem to want to play ball.
if you want to submit a ticket to admin about it you may be able to get the techs to advise you if there is anything that you can do.
Submit a Ticket