yes. get it from the appworld or download it from the whatsapp website.
Yes, I have a lot of friends that use blackberry and they've got Whatsapp
yes
dose whatsapp work on 5620 ?
No
why not
Yes it Whatsapp works on Nokia Asha 305.
Yes it doed
Yes
T-Mobile offers a BlackBerry service plan, but the company doesn't make BlackBerrys. Research In Motion is the creator of BlackBerrys, such as the Curve and Bold.
As long as it is a GSM device and not a Nextel iDEN device then it will work as long as the device has been unlocked.
yes
yes