While I like to see a spirited debate, I'm going to step in here.
In terms of the name, I'm considering all points. I understand where you're coming from, Phae, in terms of making it more palatable to those who know more real science than pseudoscience; I get slightly put off by pseudo-physics when I encounter it in a setting like this. However, the name was tied into my concept of the class from the very beginning, so I'm still deciding if it's inextricable.
EDIT -- OK, here goes:
Sable, in terms of combat versus non-combat... you know that I like my games to have a very healthy mix of both. What that means is that I don't want to have a class that's hamstrung in terms of contributing in one of those areas. I know that when I play a class and it's useless in combat OR in non-combat, I feel frustrated... which is why I tend to build my characters (and try to design my homebrew) to enable prowess in both areas.
Phae, yes in general I want things to be near each other. However, that's just not going to happen all the time when you have a tier 1 class (crystal mage) in the mix with non-casters like morphling, dodger, and this one. The real question is not "is morphling better at combat than this class?", it's "does morphling make this class irrelevant in any given situation?"
I doubt the answer to that is clear. A cleric can make a fighter irrelevant because the fighter is crippled enough to suck at his own area of expertise compared to a full caster. A druid can make a fighter irrelevant because not only is he a full caster, he gets a bonus fighter as a class feature. But does a barbarian make a fighter irrelevant? Well, no, not exactly, even though their foci are quite similar. Certainly in terms of roleplaying, the synthewhatever and morphling are very different, but that's not the issue in question, it's a matter of mechanics.
SOOOO... let's compare. At level 10, a morphling can turn into a Large giant and has a +4 bonus to strength, or can give himself a few natural attacks at +1 die size. Plus he'll be able to throw rocks. At level 10, a mechanosynth (for example) will have an armbolt that does 2 attacks for 3d6 sonic damage each. And maybe an armgrenade that gets all explodey.
I think they're pretty equal at that point, with maybe advantage mechanosynth.
At level 20, the morphling can turn into a large dragon and get a crapload of attacks with morphic flurry, can grab pounce, and can give himself some tentacle attacks as well (with increased die sizes), plus he has frightful presence. The same mechanosynth can have an army's worth of hp, or can have DR 30/-- (severely reducing the damage he takes from all those natural attacks), or can have a 3x chance of SoL against a single opponent (like the morphling) attacking all 3 saves. And, he gets 4 attacks with his armbolt that do something like 6d6 or 12d6 damage base. (If he were a biosynth he could just regen all the damage the morphling could do, or dominate monster everything w/in 10 feet).
Again I call it pretty much a push, though the biosynth is definitely less of a combatant than a morphling or mechanosynth.
Thoughts? Do you calculate differently?