The phone will always connect at the fastest speed it can find so if your in a area that has a good HSDPA service your get the fastest, which can be up to 7.2mps inside the M25, if it cant get good HSDPA it will go 3G (upto 3.2mps), and poorest GPRS (Dial Up speed).
The basic Web'n'Walk package £7.50 has a 1 Gig fair use.
The Web,n,Walk Plus package is £12.50 has a 3 Gig fair use but allows you to use the unit as a modem when connected to a laptop or PC
Hope this helps
That is not true either - you seem to have the same ver much incorrect view as the dimwit in my local vodafone shop,
There are numerous levels of HSDPA connectivity - 1.8, 3.6, 7.2, or 14.4MB/s - ALL of these speeds are HSDPA (O2 run 1.8, 3 run 3.6, everyone else runs 7.2 so far)
3G runs at a max of 384KB/s - roughly 6x that of GPRS, which has a max of 64KB/s
In addition to this, all of these quoted speeds are theoretical maximums
. The chances of you being able to attain the maximum speed are extremely remote, and depend on how many users are connected to the same transmitter as you and your distance from it. On an excellent day, I would expect to not get better than 2/3 the quoted speed.
Plus, as confucious said, W'n'W standard does not
now include HSDPA, unless you were an existing customer and
had it activated before 17/10/07. However, some people seem to have slipped through the net on this (me included), so its a rather patchy implementation of the rule. (as a pointer, my w'n'w appears on my contract as "web 'n' walk handset option", as opposed to "web 'n' walk standard")
And again like confucious says, the network can restrict any user to any speed they like whenever they like - in other words, whether your phone reckons theres a HSDPA network doesn't necessarily mean that there is actually a HSDPA connection available to you at that time. The only way to see if you have HSDPA is to do a speed check on the connection - if you get more than 384KB/s, be happy. If not, then contact your network (unless you're on w'n'w standard, in which case dont bother and either put up with it or upgrade)