You cannot do this…. Yet. We might be able to soon.
unforturnately, we can not do that at this time!
What’s the best way to transfer my photos on iphoto from my mac book to my imac desk top?
I have created a “how to” on sending multiple pics along with some tips like sending full resolution pics from an iPhone. You can view it here http://krashr.com/2009/07/how-to-send-multiple-pictures-in-an-email-on-an-iphone-3-0/