opening the door for potential testers, Jagex announced today that it has begun the beta for RuneScape 3. Accepted testers and gold/silver club members can go ahead and get a peek at the next iteration of the MMO. If you applied and haven't been chosen yet, Jagex promises that more invites will go out in the next few weeks.
Jagex does specify that this is an early build in the HTML5 client. As such, the studio warns that there will be noticeable bugs and glitches as the tech undergoes optimization, not to mention missing features. Testers' visual settings will be set to minimum specs initially.
RuneScape 3 will be released this summer.