One of the things I asserted was that, in spite of the fact that it was developed specifically to be a D&D setting, it feels more like a Savage Worlds setting. Then again, I'm not all that familiar with Savage Worlds--I've played it a bit here and there in one-shots, but I'm hardly fluent in its idiom. The setting would also work reasonably well with some older versions of D&D, or retro-style fusions of older D&D plus some simplified and stripped down d20. These wouldn't necessarily encourage the swashbuckling style of combat, but it also certainly doesn't hinder it--something like B/X D&D often had quite creative, swashbuckling combat, in my experience. Or, at least it could.
I'm not, however, aware of any microlite conversions of the Eberron specific races, other than some I found in a forum post a long time ago. I'm adding them to the game pretty much as they were originally listed in that post. There was also an Eberron specific class, the artificier, but given the collapsed and simplified nature of Microlite compared to d20, I think that treating the artificier as simply a subset of existing m20 mage class is sufficient.
I've got some other, and perhaps more dramatic "remixing" to do, much of it previewed in my previous post on the subject (see the tag for more info) that actually change certain elements of the setting itself.
But I think first of all, you need to get the system right, and I've never thought D&D--at least not d20 D&D--really fit the vision of the Eberron setting very well.
—Warforged: +4 to resisting poison, disease, sleep, and anything else that wouldn't normally affect a construct. (Normally warforged are immune to all these things,but a +4 is enough of a bonus to shield them against any level-appropriate attack.)
—Shifters: All shifters have +1 Survival, +1 Physical, and a bonus that triggers when the shifter "shifts"--1/day per every three character levels.
-Longtooth/Gorebrute: 1d6 damage bite/gore, +2 Str
-Razorclaw: 1d4 damage claws (on hands and feet), +2 Dex
-Cliffwalk: Climb at half speed, +2 Dex
-Beasthide: +2 Natural Armour, +2 Str
—Changelings: Change form as move action, +1 Subterfuge, +1 Communication
—Kalashtar: Can spend 1HP to establish a two-way mindlink with a creature it can see, +1 Communication, +1 Knowledge