Since i have only OTA sync on me E6 and i am to lazy to flash me phone again to have ActiveSync , sync with OTA didnt worked with Gmail... At least i didnt founded a way... But I think I founded a working solution (working for me).

1st open up your SYNC app from menu. In sync menu tap on SyncML OTA setup.
2nd this is the configuration that i use and it works for me.

Data Paths:
Contacts:
Code:
/contacts
Server name:
Code:
https://m.google.com/syncml
User name:
Code:
yourusername@gmail.com
Password:
Code:
yourgmailpassword
And then select your Data Connection that u previously had setup...

Well for now... I think it works only one way, (Phone To Gmail) at leasts for me... It works with adding new contacts, it works with modifying old ones... It stores your contacts in 'My Contacts' Category in Gmail...
I still didnt tried the Callendar and Tasks sync....

Please, backup your phone contacts and Gmail contacts before doing any experimenting!

Please tell me what u think ppl and any hints and tips about this!
Thanks!