Samantha Ronson is the latest microcelebrity to join Twitter (@jackdaniels9) and we are already becoming fans of her no holds bar postings.  Take the latest "Hollywood Cake" that she uploaded to Twitpic (was this before or after Lohan ended her relationship with Ronson over her private Twitter account?) With powdered sugar "lines" on the top, we can only imagine who this was for.  Who knew Samantha was so creative?