Imsy - Mobile messenger?

I have 2 Nokia handset, and today I noticed new app appeared automatically on both handset. The app was "Imsy".
I have no idea how this app got installed on my handset. After I opened this app, I found its some type of messenger service for mobile which registers name and mobile number.
Its website is Imsy Social Messenger for your Mobile Phone. Its available for Android, Apple and Symbian as well.
Anybody tried/used this app?

bah. not another whatsapp. the app may be good but there are already so many options available. its like starting a social networking site after facebook and g+ and expecting people to use it.

Actually I am not fan of these mobile messenger, but reason why I posted about it here was because this app (Imsy) suddenly appeared in my 2 Nokia handsets. I was surprised about it. Later I realised that it might have installed after I had upgraded app "Socially" which got new version 3.06 (previous 3.05). Both Socially and Imsy belong to same developer group Antarix (Nokia Store).
BTW Imsy has some feature like Facebook, Twitter, Weather, Sensex Alerts coming like sms, but none of it is working on my handset 😀

I tried it on my Nokia and Samsung Galaxy android phones... it is awesome. it think its whatsapp killer. facebook, twitter integration is very good.