Hello Scaler,

Thank you for the reply.

<< Do you mean that you want to type the message on your PC and then send it as SMS, coming from the phone number of your N900?>>
[Anand] Yes, that is what i would like to do.

I am using t-mobile and i do not believe they have such ability on their website.

I've used Oxygen Software in past to send/receive SMSes for my Nokia e90 from my laptop. But it seems this software does not support N900.