Xur is located next to the crucible quartermasters at the tower this weekend (Friday-Sunday 4AM-4AM). If you haven't purchased or met with him yet I suggest those of you to do so. The items he offers this weekend are beneficial to all including:exotic weapon upgrades, new gear for all classes, and sparrow upgrades. If you need to stack up on strange coins I can help you acquire them quickly if you send me an invite/friend requests.