2011 is the year that mobile security is going mainstream. Here at 2011 RSA Conference in San Francisco many of the security software companies I've spoken to have either released--or are planning to release a mobile security app of some sort.
Lookout Mobile - News, Features, and Slideshows
Lookout Mobile Security has created a paid client application that makes use of the vendor's cloud-based service to secure Android smartphones. Lookout Premium adds new features for greater privacy, remote lock, remote wipe, and enhances its cloud-based backup-and-restore capability.