I must say that I am not surprised that Microsoft will not allow other
programs than MS Outlook to synchronize with Pocket PCs.
I use Firefox, Thunderbird and now Mozilla Calender.
Microsoft products are inferior to many other brands of internet
application, simply due to the security flaws that are uncovered by
hackers and virus writers, rather than open source code junkies, who go
out of their way to improve software for free.
Anyway, I just wish that there was a way of synchronizing MS Pocket PC
with Mozilla Thunderbird.