After updating to 1.0.0-rc.0 I did a simple test using “ionic start ./MyApp tabs” and everything went great. Then added sass “ionic setup sass”, no problems here. But, when I run the app “ionic serve” my tabs have no icons. It looks like the ionic-starter-tabs is using “ion-ios7-*” but the version of ionicons included does not have that. Changing the icons to “ion-ios-*” fixed the issues. Not a big deal really but for people just getting started it could cause confusion and frustration.
Just my .02