I use Likebook（博阅） Ares, a 8 inch machine with 2 G ram. 2 G ram is enough, if you just use it to read books and some times surf the internet. (but surf the internet would be a bit slow, because e ink device is not as fast as smart phone.)
Dictionaries in Mobi or stardict format can be identified by my machine’s own system, and the look up speed is quick and acceptable. So I don’t use eudic, even I’ve installed one.
BTW, Boox（文石） can identify MDX format dictionary, so it would be much more convinient. I see your other reply, and it seems you have strong demand of using OALD on e ink table. It’s obvius that getting a MDX is much easier than a Mobi one. So you can consider about Boox.
LDOCE5 on my machine:
牛津高阶双解, which is a hybrid of OALD7, COD9, and Ultimate ECDICT.
