Tapatalk is for the Blackberry as well and Marty has enable Orchid Board for it's use so you should be able to use it.
My hubby has a smartphone for his work, and I tried using IE to view OB earlier today. The side bar and top bar loaded and a momment later I could see the corner of the main part of the window. By zooming out and scrolling accross I could actually get a workable view of OB. Enough to read a whole thread and view the pictures.
His smartphone is quite large though and I'm wondering if you are not seeing the main window just due to the zoom level, however as Camille has said it could relate to a problem with the browser you are using.
Personally if the smartphone were mine I would enable tapatalk, it looks good from the screen shots I've seen and only costs a couple of quid. I've not actually tried it though as I don't own a smart phone.
Like I said, I use Tapatalk and it works pretty well. Sometimes it crashes, which is only a minor inconvenience, but it's an iPhone, need I say more about the reliable nature of apps from the app store? The one thing I have noticed, is when I insert an image (which is SUPER easy), when I look at them on through the actual website, they are HUGE!
I'm glad to know it works well Ardera. I should probably have said above that I don't have a smart phone yet. So if I do get one I will definately be looking into Tapatalk.