First impressions of nexus 7 and build quality are good. The Youtube app is working fine. However, I am disappointed that there is no FLASH support and the BBC iPlayer app and a few others are not compatible with the tablet. Adobe confirms it won't support Flash on Android 4.1 Jelly Bean.
Nexus 7 tablet doesn't installed flash player. I can't find a way to downloaded the app from Google PLAY store, or installed from a backup from another device. I suppose they will catch up and allow it soon.
Links: How to install Adobe Flash on Nexus 7