Travel on VWP while H1 is pending/approved but not stamped

[boylove]

A US company is about to file H1B for me in the 09 quota (1 april). So, I'll be in H1b process after that.

In the meantime, I want to travel to US using Visa Waiver as European citizen for leisure or business while working for my current employer here in Europe.

At no point, I am looking to work in USA and the business visit is only going to be small (1 week or two). Or vacations.

1. I hope there is no restriction on visiting on VW while the H1B Visa is in the process.

2. Also, even after the H1b is approved, but I don't go for stamping (can't travel on it before Oct09 anyway), can I continue visiting US as visitor on Visa waiver.

Looking for advice from experience/knowledge. Thanks for all the help!