My sample code, below, works just fine for me...
Dim x As New Xml.XmlDocument
x.Load("http://www.example.com/example.xml")
TextBox1.Text = x.OuterXml
x = Nothing

....my problem is that my phone seems to still be connected to the phone
company. Sure, I can press End to disconnect, but I forgot to do that once a
couple of months ago and it cost me at least 90 minutes!

I've read some similar posts here (searching for smartphone and disconnect)
but they all seem to be using something called connection manager which I
can't find in the CF.

The ConnectionManager is a part of OpenNETCF library [1].
ConnectionManager contains the method Disconnect which you are looking for.

[1]
http://www.opennetcf.org/SourceBrows...tionManager.cs
sdbarron wrote:
> My sample code, below, works just fine for me...
> Dim x As New Xml.XmlDocument
> x.Load("http://www.example.com/example.xml")
> TextBox1.Text = x.OuterXml
> x = Nothing
>
> ...my problem is that my phone seems to still be connected to the phone
> company. Sure, I can press End to disconnect, but I forgot to do that once a
> couple of months ago and it cost me at least 90 minutes!
>
> I've read some similar posts here (searching for smartphone and disconnect)
> but they all seem to be using something called connection manager which I
> can't find in the CF.