As usual, it's time "to eat my own dogfood" - and therefore I'm updating now my laptop to SUSE Linux 10.1 Alpha3 as part of the pre-release testing.
This is the first release of SUSE Linux that installs NetworkManager by default. The integration has still some rough edges. The new kernel 220.127.116.11 has changes in the wlan area and the madwifi driver was updated and NetworkManager cannot handle it the device. Fortunately the network scripts work (after updating wpa_supplicant and a small change to the udev rules) - and kinternet should work as well. With a prism PCMCIA card, NetworkManager was working as expected.
I created yesterday a Factory News Page at openSUSE.org that tells about ongoing development changes.