Known Authentication Problems

Due to the fact how Vista and the upcoming Windows7 handle samba server connections, in Order to be able to connect to you iPhone you will have to do the following:
got to: Control Panel/Administrative Tools/Local Security Policy
"Local Policies/Security Options"
set "Network security: LAN Manager authentication level" to "Send LM & NTLM responses"
set "Minimum session security for NTLM SSP" to "Disable Require 128-bit encryption"

After you did all that REBOOT your machine once and then read the Windows section on how to connect to your iPhone. Instead of just using your WiFi IP address to connect to your iPhone, you will have to use "\\MY_IPHONE_IP\iphoneroot".