Lisk is probably the most developer friendly of them all, the team is strong and the community behind it is big. I expect good things from them.
I don't believe that the SDK will be released today, but it would be a good move. The sooner people start to develop on it, the better!
Also, like you said, Lisk really needs to deliver, they kind of disappointed on the last event and the competition is very strong.
As for the price, it has been going slowly up because of the rebranding, so unless they announce the SDK or some massive partnerships, it will probably stay as it is.
Keep up the good work! Charlie always delivers!
nice comments @teoalex!