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Mark Murphy will be in the DC area for DevFest DC, September 23-24, to talk about doing periodic work in Android (and all the associated hassles with that).
He will also be at droidcon NYC, September 29-30, to talk about drag-and-drop, particularly between windows on a multi-window environment.
He is also scheduled to present on working with Android 7.0's multi-window features at DevFest Florida, November 5, in Orlando, FL.