Hi,

I did get a chance to submit a paper on security concerns in Web 2.0
This paper has been published by OWASP now and is available at link below:

PDF version:
http://www.owasp.org/index.php/Category:OWASP_Papers 

HTML version:
http://www.owasp.org/index.php/OWASP_Papers/Jeopardy_in_Web_2_0 

Happy reading !!!
Please feel free to drop in your comments about the paper.
You can mail me at dharmeshmm_at_gmail_com

Wregs,
Dharmesh M Mehta
http://smartsecurity.blogspot.com