Let me share how i did it,
I have an ipad and iphone, both have 2do.
All this while i have been using my mac as a server to sync 2do between the two.
With icloud, I decided to hv it in sync over the air.
However, i encounter a problem, the ones that all of us has..error 405.
i spent 6 hours (from 11pm to 5am) trying various ways, at last i got the solution hence my earlier post on how to do it.Maybe because i was excited to share the solution, i forgot the first thing i did, it is now step 1 below.
Step 1) i wipe out the whole data in my ipad 2do, i deleted the whole folder and task, make it a blank 2do.(am not worried because i have my data in the iphone.
Step 2: Access the iCloud web page, http://www.icloud.com
Step 3: Select calendar from the www.icloud.com
Step 4: create a folder in my ipad 2DO (the blank 2do), eg "best 1" and create a task in that folder eg. "to do test 1" i suggest you create the same number of folder you have in your existing 2do, do use a different name to easily identify later.
Step 5: sync within 2DO using iCloud
Step 6: in www.icloud.com
, under the calendar selection, you would see "best 1" as one of the calendar folder.
Step 7: drag "best 1" from calendar into the Reminder section.
Step 8: sync iphone and ipad with2do.
Step 9: you would be able to see the folder that's syncable with icloud. you might see lots of duplication folder.
Step 10: drag all your 2Do things to do into the "best 1" folder in your mobile device.
Step 11: Sync using iCloud
Step 12: Walllaa..all done and no 405 error.
now, my 2do is syncing well however it is still a problem to create another folder to sync with i cloud.
my suggesstion, in step 2 above, if you have eg.3 folder from your original 2do, do create 3 dummy. please backup your data because if you do it wrong, the whole data might dissapear.
All the best,