Twitter Jail is no tweeting if you've reached the limit of 100 tweets per hour/1000 per day.
You can access your page, you may not post publicly for a specific period of time. Anything from half an hour to a few hours.
Im stuck in Twitter Jail now i have to find something else to occupy my time, Checking myspace messages, online bloggs, Facebook , Socializing, Working, Chores, Taking care of your children, Cooking,
When you tweet 116 tweets within 1 hour. Twitter locks you out and you will not be able to tweet until the next hour.
I promo'd so hard I was put in Twitterjail 3x in one day.