The last time we heard about the availability of the ASUS Transformer Pad 300, it had popped up for pre-order at a few online retailers a few days ago. But now, it looks like we may finally have a date. An ASUS spokesperson told PCWorld today that the Tegra 3 powered Pad 300 will begin shipping in the US on April 22nd. Although ASUS failed to mention pricing for the tab, we told you guys before that J&R listed the 32GB version for $400, though we’re not sure if that pricing will stick upon release. We’ll keep you guys posted.