I am not sure how good of a news is this for the price of bitcoin. It is currently only allowing people to deposit onto the site but not withdraw from it, so its bad for the price of btc.
This also applies and means the same for Pokerstars. Now since you can deposit but not withdraw means drop in price.
Since when can you deposit BTC on Pokerstars?
Im a former US players, so im obviously out of the loop when it comes to news regarding Stars....
As far as Neteller accepting BTC, thats really really really good news. Hopefully a domino effect will happen with others following the lead.