Blackberry messenger for Android, BBM, hands on review - features and bugs

The new BlackBerry messenger for Android has made a splashing start. In the first two days of using it, here are the main features as I see it. I will also compare these with whatsapp.

Authentication
Blackberry ID and pin is a must for BBM unlike whatsapp. This is a different philosophy regarding privacy and can't be compared. There is slight friction in adding new contacts. Scanning QR code didn't work with my 3 MP camera. But following www.pin.bbm.com/BBMPIN lets anyone add you directly, only that there's no easy way to add the URL prefix to your pin while sharing.

Private chat
The text boxes are too big, but the font is too small. There are about four icons next to messages to signify different status of the message.
There's ping option (like yahoo messenger's buzz) which is another way of saying hi.
There's also the ability to attach images, sound notes, etc. And a lot of emoticons to choose from.

Multi person chat
No image support here.
Easy to add people.

Groups
Group is the best thing about BBM. Groups are given separate space and is not like just another endless conversation. There can be discussions in different topics.
Pictures can be uploaded which can be commented upon
Checklists can be made and individuals assigned to different items.
Events can be added which appears chronologically.

Group members can be added by anyone. There can be multiple administrators.
And members who join after a long time will still be able to see previous messages, lists, pictures, etc (unlike multi person message)

In total whatsapp groups now appear child's play :-P

Bugs
Till now, I've found some small bugs.

The settings keep reverting to default.
The blackberry connected notification needs to be on for pin invites to work properly.

But considering that this is the first release, I'm sure BBM has a bright future!