Social mobile location startup Rummble has gradually been updating its service over the last few weeks to meet the oncoming competition from new kids of the block like Foursquare. As we prefaced recently in the Summer, today it’s launched a new Android app for its service (download here). Rummble has had an iPhone app for a while and a Windows Mobile version is in the works.

Furthermore it has also implemented the Twitter’s new Geotagging API which provides accessible location context to tweets from Rummble check-ins and reviews. This works with new versions of twitter clients like Tweetie, Tweetdeck and Seesmic Web, which launched support for the Twitter Geotagging API earlier this week. That means Rummble users can geotag tweets with their current location (if they choose to share it) and any venue in the world. This real-time geo-data is consumable by everyone on Twitter, regardless of whether they are signed up to Rummble or not.

This is one of the first social apps (outside of twitter clients) to use geo tweets. It adds geo lat/long into tweets for Twitter’s Location-api for status updates posted out of Rummble. This covers the user’s location, check-ins and tweets posted of Rummble reviews of a bar or cafe etc. Tweets from the Gowalla and Foursquare aps are geotagged if the setting has been switched on in twitter settings.