If you want to have a campaign before or around the Summit you won't be able to use and show the N900 itself. Actually you won't beable to tell much based on your own experiences since most of you will not have grabbed one yet. So what about something like 60" max videos with you explaining why you think Maemo 5 and/or the N900 are ideal for you? can be a self-portrait while you speak or something else with your voice in off etc Easy to produce, good for right now and in the meantime you can prepare more complex productions...