Hi,
Linaro Ubuntu baseline is now migrated to latest Ubuntu release (13.04 - Raring). Daily hardware packs and rootfs are available as usual on http://snapshots.linaro.org/raring Pre-built images aren't available yet. They will show up soon.
Note: Quantal based images won't receive any updates anymore.
Cheers, -- Fathi Boudra Builds and Baselines Manager | Release Manager Linaro.org | Open source software for ARM SoCs