The photo sharing feature on Twitter that we first reported on a couple months ago is now live for all users. This nudges the service a little more closer towards what Facebook and Google+ offer, allowing users to upload and share photos directly through Twitter. Third-party photo-sharing services geared towards Twitter users can’t be too happy about this — the founder of TwitPic turned down a $10 million offer back in 2009, only to have Twitter drink its milkshake a couple years later.

Update: Apparently TwitPic’s founder is striking back by launching a competitor to Twitter called Heello. This is getting interesting…