Hello grif@myredhats.com,
I checked on my own account and the Send an Email? is not currently on the activities screen. The goal is parity with Method:Classic so I know it is on the roadmap for future feature development iterations. If an email has come in, you do need to manually copy and paste the email into the comments from your email account's inbox to the Method activity. The alternative is to use the Google Gadget to enter activities directly from the email.
I hope this helps. Let me know if you have any other questions,
Greg