hello everybody..been googling around and none of them talking the question bared in my mind

im a in a jump from windows mobile phone to an android phone..

as far as i know, BBM requires that you are connected to a blackberry internet service (BIS).do android phones support BIS to get BBM?

and do they need special 'hardware' integrated in it? scared if it need to ' hardwarely upgrade' before BBM can be functioned..so its better to have a WAIT for that phones instead of buying android now..

p/s>> and i know, we can use a cross-platform chatting application like Whatsapp that works the same way as BBM.