I stumbled on this via Jym Cheong’s post on the Tweetlah facebook page. Jym asks on 31 Jan 2009 – “Let’s have 1000 Users!” (there were 36 at the time).
Restrict your tweet to 120 characters though as the URL is inserted at the end of the messsage. I don’t like having to include my password in the SMS each time and it’s for sending not receiving SMS’. Otherwise, it’s a boon to Singapore twitterers and looks to be a blog killer. Go try it out at twitter.sg
Update: see Jym’s responses at the twitter.sg blog.
Otterman speaks... 
Reffering to your sentence – “Restrict your tweet to 120 characters though as the URL is inserted at the end of the messsage.”
I heard that it should be 140 characters. Correct me if i got the wrong info. ^_^
Well, each msg has ” – http://twitter.sg” appended to it. That takes up 20 characters.
“As one of the users of TwitterSG, I can understand the desire to possess all 140 characters. However, as a designer of systems, I need to clarify that ” – http://twitter.sg” is a string of 21 characters and TwitterSG was designed as such that NO URL will be appended if the length of your password together with your message is greater than 140-21 or 119 characters. This feature was not an afterthought.” – See: http://twitter.sg/blog/2009/02/02/i-would-like-twittersg-go-viral/
Can’t seem to successfully get the service working. I registered my handphone and tested it out but no luck. In fact, I registered twice; to be sure, to be sure. Any ideas?
I had problems registering too. But I found this other site on sgforums that works for me.
http://sgbeat.com