Image based on Kevin Van Aelst’s original. Update: These basic “tags” have been christened “slashtags” by Chris Blow. They are also now supported in Atebit’s popular Twitter client Tweetie 2 on the iPhone. Since it’s apparently all the rage to design your own features for Twitter now, I figured I’d build on my success with the hashtag and crank out a few more. All of these are simple conventions f