Really interesting thread!
Im a new web and walk
n95 user as well. When I phoned up and asked about HSDPA I was told it was already on, but im not seeing a 3.5g logo when I use the web n walk in central london (which I presume will have the service available)
However, I havnt yet been able to upgrade my firmware (suprisingly my computer didnt have the ram to run NSU), so is it possible that HSDPA has been switched on but my phone cant yet use it?
Any help would be appreciated!