HP's latest virtual reality backpack PC has been a long time in coming: the company unveiled it in June and promised a July release that came and went with nothing to show. At last, though, it's here. HP now expects to ship the Omen X Compact Desktop on October 10th. You'll have to drop $2,500, but you too can sling a speedy gaming PC (with a 7th-generation Core i7 and GTX 1080 graphics) on your back and avoid tripping over cables while you explore VR worlds. There is, however, a gotcha you'll need to be aware of before you splurge on this wearable system.