Sideloading apps on Android implies a whole set of security holes, but the new malware scanner included in Android 4.2 could provide a much-needed plug. Talking to Computerworld, Android VP of Engineering Hiroshi Lockheimer revealed that Google's been analyzing APKs that crop up online, regardless of whether they're official market apps or not, in order to maintain a growing database of good and bad code. The scanner -- shown abov