I’d guessed that the Essentials Cavalier paladin would come with a summonable mount (based both on the general retro-ness of Essentials and on the etymology of the word Cavalier). When Heroes of the Forgotten Lands came out, though, it looked like I was wrong.
Just when all seemed lost, D&D Insider came galloping to the rescue, with The Cavalier’s Steed, which provides a poké-horse as an alternative to the Cavalier’s class feature Pace of the Virtuous Charger. (Pace of the Virtuous Charger is the one that lets a cavalier get a speed boost on charges. Somehow it makes me picture the paladin galloping into battle, possibly while riding one of those horse heads on a stick. I think I prefer the real horse.)
The article also provides mounted feats, including upgrades to the Paladin’s summoned mount. My favorite:
Improved Steed (Celestial Battle Tiger)
You have learned how to summon a large, powerful battle tiger from the celestial realms to serve as your steed.
Finally, my He-Man-themed D&D campaign can get off the ground!