The G team has been implementing user-suggested improvements, and one such boost is better performance. To that end, the Google Glasses currently making their way onto faces are equipped with 2GB of RAM.
That’s double the RAM Explorers were enjoying. Unfortunately for them, it doesn’t sound like the older, lesser-RAM versions are being offered a trade-in or other way to upgrade. The Google+ post announcing the RAM boost is covered in comments from Explorers asking these very questions. So far, +Google Glass has stayed silent.
We’ve asked Google ourselves for an answer, but perhaps it’s saving the announcement for Google IO’s opening keynote Wednesday.