I also notice that it's a CPU-only coin. Does that tie in with the goals of the coin somehow, or is there no specific reason to it?
Are there any notable advantages/disadvantages worth considering as far as how CPU might influence the adoption and usage of datacoin?
If it was sha2 those that had paid for Asic miners for bitcoins would have killed it since after 1 month they would have mine much of it living nothing for late adopters.
The same goes for scrypt. Those with good expensive graphics cards would have mined most of it.
Only cpu coins like Datacoin, Primecoin and Protoshare (not quark, molecule because those can be now mined with GPUs too) are being mined more slowly and this is good for most adopters if time has passed. For example my i3 laptop now mines 0.3DTC per day. And i am using my laptop 10 hours a day at least.
The problems though for cpu coins are the botnets. Someone with a botnet can easily make its slaves mine for him cpu coins. And this is actually happening with all CPU coins. But pools can easily find botnets and ban them.