I have seen these around also and they are pretty nice.
A problem I see is that the small loose flash cards are very easy to damage and lose - where is the easydisk is a bit more versatile. I have several easydisk type drives now and I haul them around on keychains and in my pockets - I have dropped them and stepped on them with no damage or loss of data - the only thing I haven't tried is washing one.
It is also smaller - nicely fitting on a keychain or around your neck. I carry mine comfortably in my pants pocket.
One other thing to note is that these flash card readers like you mention usually aren't truly plug and play and require drivers.
Thanks for your input - and yes I have been in contact and may be receiving one of the microtech readers for review.
Personally i'm going to try to get hooked up with a 256mb or 512mb easydisk.
Dave