I don’t use that many hashtags with twitter with the exception of my image posts to #walkingtoworktoday from my iPhone. What’s strange to me is why the setting for the pound key is hidden behind the general number keyboard. To create a simple hashtag it takes three clicks. Considering the popularity of Twitter and hashtags I’m surprised Apple hasn’t bothered to update the keyboard. I doubt that replacing one key is going to cause too much of an issue. Why not switch it with the semicolon—when was the last time you used that key with your iPhone? And while we’re at it, why not have a character count tracking the number of letters in a subject line of an email. That way if I’m tweeting photos to flickr I know where I’m at in terms of words…