I've tried it before it was halted and it is exactly like the BB10 OS User experience with swipes from left or right to bring up different menus and options sort of like Facebook. Everything seemed to work fine but the leaked version caused issues and they stopped the service. Don't download any of the fake BBM in the PlayStore right now as a bunch of them have malware alerts that arise. Google keeps taking them down but then the ppl just keep putting them back up again under different names. When it's finally released again all the fake ones should be taken down but if your wondering which is the real one search for BlackBerry BIS and it will be the under the same company as that app which is blackberry 's business solutions app for Android.