I-485 and I-130

[babu95]

hi,

My visa on the passport has expired and my H1 petition is valid until Jan 2008.
I have applied for I-485, I-765 and I-130.

Q's
1. When can I go to India?
2. If I go to India after my I-130 is approved (Do I get any document?)
do I still need to for visa stamping or can I just show travel document at POE?

3. How does EAD helps us in travelling?

Rgds,
PV