Edit: My bad it seems its a public test weekend leading up to Open beta. I recall mention of the Path of Exile coming up in a disscussion here abouts, a while back and thought I'd give the heads up that there is a beta weekend on for this comming weekend, that appears to be open to all interested. Unfortunatly my internet is almost maxed out from all the steam downloads and Guild Wars 2, so wont be taking part. Hope all have fun that give it a go, and let us know what you think.
I've played, not so much recently. They just changed the passive skilltree and it's getting some animosity because while they tried to make it somewhat approachable they restricted builds too much. It is quite good though for fans of diablo 1 and 2 (I've honestly never played either of the two).