Samsung Galaxy Ace - HID Bluetooth Keyboard Connection?

I'm a newly arrived escapee from the iPhone Empire - I just got a Galaxy Ace and it seems better in all respects except one very important one for me... I used to use my iPhone to write / take notes etc, using an I-connex Bluetooth keyboard. But it looks like my Ace won't allow this keyboard to connect - it says it doesn't connect to HID devices. I've tried two different apps to try and fix this - BlueKeyboard JP (which only works with certain keyboards, not including mine) and Bluetooth Keyboard Easyconnect (which I think requires my phone to be rooted - at any rate, it doesn't work). I'd be very grateful for any suggestions how I can fix this, as it really makes the phone seriously less good than what I had before, given how I use it! Failing that I'd be very grateful if anyone could advise me if there is any version of Android that DOES allow HID devices to connect - and what phones run it.