For several reasons our company cannot accept the terms of the SENCHA TOOLS LICENSE v1.2. So my question is if the SDK Tools are necessary for developing Sencha Touch 2.0 Applications for iOS?

The project files can be generated manually or using custom scripts. Packaging is a nice feature but can also be done using PhoneGap, right?
Is there anything else that would require installation of the SDK Tools for ST 2.0 development?