3gpp transition solutions

hi all,
i have released a draft proposing solutions to different 3gpp transition
scenarios (GPRS only). i am in the final year of my enginering course and
very new to this field so i will appreciate any comments.
please follow the following url.

http://www.ietf.org/internet-drafts/draft-thakur-v6ops-3gpp-cases-00.txt

thanks a lot
anand