Yes the default is dd-mm-yy and I'd like to change to mm-dd-yy which is how US dates work. Very confusing to us Americans as it is!

It is absurd that YY.MM.DD is not supported.

This is available already. I am constantly changing it back from US to UK date format

Being from Sweden this is sort of a dealbreaker for me (this and lack of Evernote-integration) and I have been checking in on Any.do now and then for the last couple of years to see if you have changed it (yes, because I really like the app otherwise),

ISO 8601 is an international stand, also used by the World Wide Web Consortium. Among the countries that are listed on Wikipedia as using som variation of YY-MM-DD are China, Koreas, Taiwan, Hungary, Iran, Japan, Lithuania, Mongolia, Albania, Austria, Croatia, Czech Republic, Denmark, Hong Kong, Kenya, Latvia, Macau, Nepal, South Africa, Slovenia. Not giving any sort of YYMMDD as an option in the app strikes me as a really strange decision.

http://xkcd.com/1179/

I know this is European vs. US thing but MO/DAY/YR would be for US users for sure. Could you allow DATE FORMAT CHOICES?

I would like the same

Yes please

having the month and day really confused me!!

Yes. Please add YYYY-MM-DD ideally or YYYY/MM/DD.

Provide an option to toggle between the date format to a more US friendly option.

Example: 17.06.15 --> 06.17.15

I agree, please consider that other countries have different date formats.
Why don't include the ISO-8601 international date (and time) format?

Date: YYYY-MM-DD or YY-MM-DD
Time HH:MM

It is easy to use, it has no problem with misrepresentation like in: 04/07/12 is it April 07, 2012; or is it July 04, 2012; or is it July 07, 2004?

I agree! That is the format I would want!

It would be nice to use either a 12 or 24 hours format when entering time when adding reminders. Better yet, use the date and time picker that is similar to this: https://github.com/CiTuX/datetimepicker

May I suggest adding international format in Date Format under Preferences as "YYYY.MM.DD" or "YY.MM.DD".