Our OrbiterCE works on Microsoft Pocket PC 2003 OS. IPAQ 3970 runs Microsoft Pocket PC 2002 OS, which must be compiled with another SDK/compiler, so our OrbiterCE won't work on your IPAQ
However, 3970 has also wifi which we'll be able to use.
Here's a mantis for me for another guy who needs a version of OrbiterCE for Pocket PC 2002 for his tablet: http://plutohome.com/support/mantis/view.php?id=1037
. I will build a version for PPC2002 too, but I don't have a ETA for this.