Feedback till section 4 and objectives revised version

Hello,
   Attached are my comments and corrections (as track changes) on the
roadmap doc till section 4. A revised version of the objectives section is
also attached for your reference.....

I am still in the process of going through the entire document.... sorry for
this late entry after a long break... I was pressed for time due to some
personal emergency during the last couple of months... but hope better late
than never....

Regards
Renjish