What functionality do you have accessing Workbooks from a mobile phone - e.g. emailing a customer directly from their record, or making a phone call directly from their record?
Mobile phone usage
We have a mobile version of Workbooks available in Beta right now. It's not fully completed by it works and you can see the functionality available.
You can access the beta here: https://secure.workbooks.com/mobile/
You can also see more details about what's included in the initial version the mobile client on our roadmap page here: http://www.workbooks.com/help/roadmap
We hope that helps.
The Workbooks Team