No news of when Windows Mobile 7 will arrive. However, two screenshots of a Windows Mobile Device OS appeared and it seems like it is the in-between version of Windows Mobile 6.1 and Windows Mobile 7.
Nevertheless, treat this as information only as it seems that Engadget fans had pointed out some discrepancies in the screenshots. for example, the Today icon seems like the OS X (MAC) icon. Hopefully, we can get some real explanation to that.