Founder of Twitpic, Noah Everett, has unveiled Heello. Heello is a twitter clone with a few changes. For example, instead of tweet, you send pings to your listeners. Instead of retweet, you echo on Heello.
Here is a screenshot from Heello:

Heello also provides facebook and twitter integration, so you can share all your activities among these two social networks too. Since this network is just published, there are so many fake accounts. Watch out for fake users.
Tweet
Noah Everett today his answer to Twitter…..Heello works — mostly — exactly like Twitter does in practically every single way except the nomenclature is different. Though its wise in a self-advertising aspect we dont imagine Heello needs much more coverage than its perhaps going to get from just the fact that it launched and who its founder is…Everett didnt exactly make it a secret that he was disappointed with Twitters self-hosted pictures announcement even more so that the company didnt think to contact TwitPic. Though Heello seems easy and intuitive enough to use besides the fact that when I was trying it out the service told me I had exceeded my 140 character limit when in reality I had five characters left but it obviously remains to be seen if it will take off or just be seen as a clone..