Google today announced a second round of spring cleaning that will see yet more services discontinued. The most significant mobile app being axed is the Google Voice application for the BlackBerry platform. Google recommends that BlackBerry owners still interested in using Google Voice switch to the browser-based HTML5 app, which Google says is more secure anyway. Google will end support for Google Voice for BlackBerry next week. The HTML5 app is compatible with BlackBerry Browsers version 6 and up. Other products that have limited days remaining include the CalDAV API, Google Building Maker (tool to model 3D buildings on maps), Google Cloud Connect (plug-in that helped users save Microsoft Office documents to Google Docs), Google Reader (RSS feed), the Search API for Google Shopping, and Snapseed for both Windows and Mac OS. Google says better alternatives for all these services are available elsewhere.