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.
Overall its bullish, it will just take some time before they get into withdraws. Neteller has a huge customer base bitcoin just got a free advert to many many thousands.