It wouldn't hurt anyything trying to contact Valve once we're ready, but it is unlikely they'll care for such a small fish.
With Valve making a push with steam being flexible in being able to do different tasks. I wouldn't count them out yet until the email is sent. What if wants to support Pyra? I can't even write down all the possibilities. I am even more excited commercially for the pyra if Valve were to get involved.. "Pyra the open source handheld Steam machine".
valve already said they wont do their own steambox why would they get involved with a handheld. does not make any sense.
This.
While it is true that for Valve the Pyra will be "small fish", it would also be a great testing bed for them. A nice open handheld that they could use as a reference system. And /if/ they got involved, it woudn't stay a small fish for long, as least I doubt it.