I need to upgrade my entry level smart phone to something more robust to manage my business more efficiently while out on the field.

I am a prolific user of Microsoft Outlook 2010 (e.g.: Mail, Calendar, Contacts, and Tasks) to say the least, and need to be able to sync Outlook with a mobile device (e.g.: Android, or iPhone).

There are several different options available, but according to "Comparison of Exchange ActiveSync clients", it seems there is only one solution that supports Outlook Tasks sync with a mobile device, Microsoft Outlook 365 with Apple iPhone, or Windows mobile, which is not an option for me.

Are there other options available before I commit to what appears to be the only solution.

Thank you.