Absolutely. Rolling strikes/actions are great tactics (especially if they lead to a general strike). Some advantages are that you have smaller groups to organize (though the actions should be coordinated) and the risk to the activists is less because they are back to “normality” before the cops can get them. Also, the message is spread far and wide in terms of visible actions, not just Tweeted.
Also, there’s plenty of room for the Tweet-addicted by announcing "flash-mob actions: “come to place x at time y to do abc.” Or even better (this takes real organization): Announce a flash-action, but fix it so nobody shows up. Drives the cops nuts every time and nobody gets gassed or clubbed unless they go after innocent bystanders who can hit them with massive lawsuits.