I had configured my outlook.com account for Outlook android app  (android 2.2) and outlook desktop client (MS office 2007 suite) on windows 7.

When android app is in sync with web mail, desktop client is not downloading the new mails. Means if my android app get synchronized first with web mail, then my desktop client is not downloading new mails.

If my desktop client get syn first, then there is no issue,mails get downloaded on both the platforms