If you do know this (or look below) and you've watched the recent viral video for Iron Man 2 featuring Stark Industries subsidiary company 'Accutech' you may notice a certain similarity in their logo to the Avengers one.
Now you could of course say that it's pure coincidence, but knowing that there are a lot of hints and Easter eggs throughout the other Marvel films, and that they wouldn't make this similarity due to a simple mistake, I'm pretty sure it's a fan treat for us all to get excited about and start rumours.
See what you think.