As long as you manually enter these data settings

for mmode email-

Tap the Home key on the keypad until the word "All" is listed in the upper right corner.
Tap the Mail icon.
Tap the Menu bar tab (dark blue area) in the top left corner.
Tap View and then tap Edit Accounts.
Tap New.
Choose from the drop down menu of popular Internet Service Providers or tap Other.
Tap Next.
Enter the following information:
Account name: User defined, example "mMode mail"
Full name: Name to appear in the from column of the recipients mailbox.
E-mail address: username@mmode.com
User Name: mMode username
Password: mMode password
Tap Next.
Enter the following information:
Incoming (POP3) Server: imap.attwireless.net
Outgoing (SMTP) Server: smtp.attwireless.net
Tap Next.
Verify the following information:
Leave mail on server: Optional, recommended to check
SSL required for POP3: Unchecked
SSL required for SMTP: Unchecked
For Outgoing mail server User Name: blank
Password: Unassigned
Tap Done.
Test the setup by sending an e-mail.


And you have to manually enter these settings

Name: mMode
Homepage: http://home
Gateway IP:10.250.250.250
Port 1: 9201
Domain 1: Blank
Service Type 1: HTTP
Gateway IP 2: 000.000.000.000
Port 2: 0
Domain2: blank
Service Type 2: HTTP
DNS 1: 000.000.000.000
DNS 2: 000.000.000.000
Timeout: 5 minutes.
CSD no 1: Blank
Username: Blank
Password: Blank
Speed (Bps) 1: 9600
Linetype 1: ISDN
CSD 2: Blank
Username 2: Blank
Password 2: Blank
Speed (Bps): 9600
Line Type 2: ISDN
GPRS APN: proxy
Username: Blank
Password Blank.

Everytime you take the battery out of the device you will have to reconfigure the data settings. You can get the unlimited mmode package for 24.99 and just a reg voice plan and for normal internet usage this will be sufficient.If anybody told you different it's because they are lazy and don't actually research their job.