Better support for GMail is in our short term roadmap, but not yet available. As workarounds you can use the following:
Configure Outlook to work with you GMail account
Use App/Web activities to access the e-mail your want
As for parsing the Body of an e-mail, the only option right now is to do it in Excel (using TextToColumns, Macros or Functions) or using scripting in the Advanced Editor window.
We are aware of these shortcomings and we will do improvements in these areas in the next releases.