suggest reposting at
news://msnews.microsoft.com/microsoft.public.pocketpc.developer

Essentially, the cellular connection methods are the same as network
connections, they are just data pipes and have no native abilities to
install or control...

ppc's are "client only" os's so there is no default way to copy files
"to" a ppc's memory as on a windows os device, but, transfer methods
such as email, etc can be used.  That limit is one reason that ppc's
don't have the level of security concerns that desktops have.

As for installations, one option is to generate a cab file, put that on
a web site as a link, then, the user taps the link, the file gets
downloaded and the user then has the option of executing the cab and
installing it.

Beverly Howard [MS MVP-Mobile Devices]