Per Apple's PR machine:
Apple® today announced a 128GB* version of the fourth generation iPad® with Retina® display. The 128GB iPad with Wi-Fi and iPad with Wi-Fi + Cellular models provide twice the storage capacity of the 64GB models to hold even more valuable content including photos, documents, projects, presentations, books, movies, TV shows, music and apps.
"With more than 120 million iPads sold, it's clear that customers around the world love their iPads, and every day they are finding more great reasons to work, learn and play on their iPads rather than their old PCs," said Philip Schiller, Apple's senior vice president of Worldwide Marketing. "With twice the storage capacity and an unparalleled selection of over 300,000 native iPad apps, enterprises, educators and artists have even more reasons to use iPad for all their business and personal needs."
This is good news. My 64GB iPad 3 is still plenty for me, as I have 40.7GB free space left.
Someone mentioned on Twitter (can't remember who) that Apple should bump up the storage of the base 11-inch Air from 64 gigs to 128. I agree, though I'm sure Apple would have to raise the price from $999. Even so, I think it's time for a storage upgrade.