From MobileMarketingNews: Google just announced that they have acquired a Finnish company named Jaiku, whose mobile phone software allows users to post and read short messages (something similar to what Dodgeball did). (read full story)
Mobile blogging is really just blogging using a mobile device. If you can send an email through your mobile device/ phone, you can do moblogging!
David Davies has a nice post on moblogging, the how-to-guide.