In terms of the GConf keys read (which is the means this applet gets the values from), the N900 does not differentiate between GPRS/3G connections.

@fiferboy, sorry I was not able to test this when you asked me. Without a contract, T-Mobile assume I have money coming out of my *** with GPRS, even. With 3G; they assume that I am drug dealing, being a whore, and doing armed robberies. All at the same time.