Upgrading from TT to TX

Glad to hear the discussions on upgrading to TX

Three questions about the TX, before I bite.

1.  WiFi, I have an secure address at work, but also need to roam.  Is 
there a way, such as Win XP has that you can enter a secure address as 
well as have an open address?

2.  SD card.  How big can TX handle?

3.  WE use Groupwise at work.  I would assume that an older version of 
Intellisync would still work in sync-ing, am I correct?

Thanks all





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