The rumored plans are here and a very interesting discussion in on in the forums.
I think that they have screwed it up given the fact that BSNL has upped the ante as far as tariffs are concerned. With the imminent launch of Airtel/ Vodafone and other private players, it remains to be seen how 3G market would shape up. I think that there is a going to be a big market for the data cards given the pathetic landline access.
Interestingly, here’s something from the Tata’s end user agreement:
Mobile internet is not to be used for other activities (e.g. using your handset as a modem, voice or video over the internet, peer to peer file sharing). Should you exceed your fair usage limit or such use be detected, TTSL reserves right to take action by restricting bandwidth, and/or suspension of data browsing and/ or temporarily suspend subscriber account in case of data usage in violation of fair usage policy.
Ha ha ha. For all practical purposes, I wonder whether they can actually “control tethering”!!
I wonder where did these assholes spring from!
This is taken from the forums:

I usually refrain from speculating on the price wars or report on the “latest trends” but to be honest, these people have screwed it up totally.