I'm currently using Wireless Sync (via pop3) to access mail on an Exchange server but I'm thinking about switching over to IMAP. Can anyone out there, who is currently getting IMAP mail via Verizon Wireless Sync, share their experience? Some specific questions I have are:

1) How deep are your directories (folders)? Mine are currently 3 levels deep (e.g. Inbox > Shopping > Amazon > Mail Item)

2) Can you choose what folders will be downloaded to your device (subscribe/un-subscribe folders)?

3) Will Verizon's mail client run OK on an SD Card? My mailbox is too big to run in main memory.

Any other tips or traps related to this would be greatly appreciated.