It's been quite a week for M&A in online and mobile video. On Monday, KIT Digital announced it was acquiring Kewego, KickApps and Kyte. Then today Cisco bought Inlet Technologies to flesh out their Videoscape platform and Tremor Media reportedly acquired mobile ad manager Transpera. That's a lot of activity for just one week, and points to how key players are jockeying for bigger slices of the online and mobile video market. The trend will no doubt continue.