looks great, but does anybody know what purpose are the "C" series made to? For example E is business, N should be high stuff, and now, C ?

They do look great but pretty average features as these are mid level phones only. Although not exactly my type TBH

I hope these Nokias are better than the ones I have owned...I owned 3 and after about 6 months they all gave me huge problems. One time I had to replace a battery because it actually started to swell up....
I hope you have better luck than I did.

Nokia's QWERTY set is brilliant and i definitely sure that they will raise Nokia's value in market.

They look awesome.

thanks for answering my question

What are its best features and was this released? How much would these phones cost anyways?

Nokia has launched their new set of QWERTY phones which are Nokia C6, Nokia C3 and Nokia E5. These phones have mid-range offerings, packing side-sliding QWERTY keyboard and great all-round connectivity.