There are several programs out there that will sync with Groupwise. I use a program called PortaMail
http://www.quartzdevelopment.com/ it works much more quickly than intellisync. There is also a program currently in Beta testing that will install a new program on your pocket PC and not try to use pocket outlook. I like this concept since it does not try to force fit the groupwise data into outlook. I have had losts of problems with this. Take a look at this we site
http://www.nexic.com/synchronis/ppc.html