Ewwww, I see an ugly problem.
The latency thing means that moving your mouse on a remote desktop may be a chore. As long as you move your mouse r-e-a-l=l-l-y slow, you may get by. I'm assuming that once you open your excel, power point or word application, you'll be happy. Once these get opened, the memory in your home PC and built into the logmein.com application will remember your keystrokes; so you can type as fast as you want.
Just remember, it's going to be lots of 'fun' working your mouse remotely.
Is there someone in your neighborhood that has a satellite internet hookup? IF you were to log in, and see how well things work remotely, then you'ld have a good indication of what to expect.
From my experience, I've done wired internet to a desktop in California from Austin, TX. The mouse was a wee bit jumpy, but managemable. With the latency issue, I'd expect a workable mouse, as long as you moved it slowly. Othewise, you'll frustrate yourself into a homocidal rage as you over-shoot the icon again and again.
But, as I indicated; if your intention is to only navigate the mouse on your remote desktop to open an application; then I'd venture to state that once you get your application open, you'll be good to go.
You may want to get in the habit of moving the files you are going to work on, into the Quick Launch portion of your toolbar. That way, you can move the mouse down to the appropriate icon, and just squeeze off 1-click.
Not so in the case of Sky Vista. They offer a true data-grade network with one third the latency of the others. Ping times are in the 500-600 msec range as oposed to the 1400-2400 msec range for Direcway, Starband and others.
Just did a VPN test over the Sky Vista system for the CFO of Buck Knives - the takeaway: "It's just like being there" according to the CFO. Citrix Metaframe also operates smoothly and with virtualy no detectable lag.
Check out my website for a good read on this stuff.