Note2Self for BlackBerry requires an internet connection to send its data. As such you're APN info should be set.
UK Vodafone
APN: Internet
Username: web
Password: web
Bell Mobility
Sprint Nextel
Sprint PCS
Telus
Verizon
Not required
Cellular One
APN: cellular1wap
Username: (leave empty)
Password: (leave empty)
Cincinnati Bell
APN: wap.gocbw.com
Username: cbw
Password: (leave empty)
AT&T (Former Cingular Users)
APN: wap.cingular
Username: WAP@CINGULARGPRS.COM
Password: CINGULAR1
AT&T (Former old AT&T Users)
APN: proxy
Username: (leave empty)
Password: (leave empty)
Fido
APN: internet.fido.ca
Username: fido
Password: fido
Rogers
APN: internet.com
Username: wapuser1
Password: wap
T-Mobile
APN: wap.voicestream.com
Username: (leave empty)
Password: (leave empty)