More than a month early
The only real caveat is that the beta won’t have the full Xbox Game Pass streaming library. That’s expected to top 100 titles, but the beta is limited to 30ish games. However, Project xCloud is around until September 11, and it’ll seemingly keep its current lineup of games. For now, Xbox’s streaming library is split between the two apps — a little awkward but understandable — but it’ll eventually all merge together on September 15. It also appears as though Microsoft intends to drop the xCloud designation for game streaming.
Anyway, no need to wait for Xbox Game Pass Ultimate streaming as it’ll be here (albeit in limited capacity) come the morning. It’s only on Android though. If you’re an iOS user,you probably shouldn’t hold your breathwaiting for Xbox streaming to come to your iPhone.
Microsoft opens xCloud game streaming beta early tomorrow[The Verge]