I have an order for two jallies (5GH/s) and was planning on flashing them, do you guys think upgrading to 7GH/s to get better chips would be worth it?
That's a good question -- up until now it seemed like everyone could flash to 8+ GHz, but now there's someone who couldn't get better than 7. The problem is that upgrading to 7 doesn't ensure that you will be able to reflash to 8.
Josh stated that for 7GH version they will use binned chips.
From Shoutbox
The 7's will have chips that do 3.5 GH/s easy . The 5's may or may not, depends.
And again a quote from Josh:
Upgraded units use Class A chips, yes.
https://forums.butterflylabs.com/pre-sales-questions/4031-2gh-upgrade.html