Two smartphone giants – iPhone and Nexus One – got a software update yesterday.

Apple released iPhone OS 3.1.3 for iPhone and iPod touch that improves accuracy of reported battery level on iPhone 3GS, resolves issue where third-party apps would not launch in some instantes and fixes some other bugs. Google added multitouch (pinch-to-zoom), on-board Google Goggles and new version of Google Maps to the Nexus One.