User Agent: Mozilla/5.0 (Windows NT 6.1; rv:13.0a1) Gecko/13.0a1 Firefox/13.0a1 Build ID: 20120219031223 Steps to reproduce: Sync ships with Fennec as a system plugin but is currently being treated as an App. There is no benefit to it having its own icon in the App draw, it's easily accessible via both Fennec and Android's Account & Sync settings.
See https://bugzilla.mozilla.org/show_bug.cgi?id=724292#c11. I agree too; seems like discoverability has been nailed down with the promo on about:home.
Still waiting to hear from UX, and whether Fennec has the required Pair A Device link on its home screen. There's a constellation of support docs around that.
No longer in the home screen and drawer with the latest nightly build 2/28/2012