Here's some answers I can give right now.
How do I transfer a file from Foleo to Treo? SD card? BT?
At the moment, SD card and USB thumb drives are the best bet. However, our third party
Avvenue has a nice service that lets you get access to files on your PC or Mac over the web. The Bluetooth connection is currently only used to talk to your paired phone.
Security features? Physical lock slot? Password protection?
No lock slot. There is optional password protection at turn-on time, and you can set the password to be disabled if your paired smartphone is nearby and within Bluetooth range.
Does mailto: URL in browser integrate with mail app?
Yes.
Battery life on standby? Indefinite?
It lasts a very long time. We designed it so if we ship it from the factory with a full charge, it should still have enough juice to be setup when you get it from the Palm store. I've left a unit alone for a month and still been able to turn it on and use it. Of course, this all can vary depending on individual battery quality, the amount of use the device has had, and user settings.
How do you mount SD card? Does it show up in a file manager?
You just insert it. Same for USB drives. They show up as additional volumes in File Manager as well as in all the various Open/Save dialogs. To unmount, just remove the card or drive.
What's the story for printing a document? PC required?
There's no printing support directly from the device at this time.
Can keys be remapped, e.g. Alt or Menu key remapped to Ctrl or Meta?
In the Terminal app, Menu is used as Control and Alt is used as Meta. This proves very useful when I'm editing configuration files on the device using
nano.
How easy to manage multiple network configurations: WEP on/off, proxies, etc.
WiFi supports multiple profiles based on the network SSID, and each has its own security and networking settings. However, at this time there is only one proxy setting in the web browser, so you'll have to adjust it based on your network connection. I've suggested connection-specific proxy settings as a feature for future software updates.
Possible to network directly to a PC via wifi?
I can SSH from my Foleo to my PC through WiFi, and I can access my machine's FTP server for downloads through the web browser. We support both infrastructure and ad-hoc connections, but there's no support at the moment for mounting a PC's drive over a network. I expect developers will have solutions for that fairly quickly given the existence of
Samba.