Working with the Antec Mini skeleton-90 did leave a huge smile on my face. From the minute I got it out of the box, I actually said out loud, "aww it's so cute". That being out in the open, I should explain. I had already looked at the full sized version and when I pulled the mini out of the box, I was surprised at the almost "spot on" similarity between the two; the Mini struck me as almost a model of the original. Overall I liked the time I played around with my Mini Skeleton-90, but there are a couple of downsides.
I would have liked a bit more room for a better CPU cooler. I don't know about you, but I overclock almost everything I own. My ZOTAC does a fine job of pushing the FSB and with all of the extra cooling the chassis supplies, it seems sort of wasted. Now, running some DOS based tests and using my infrared temperature gun, I was able to get a few baseline measurements. With the TriCool running I was able to keep my CPU six degrees cooler when set to high, so all is not lost. The small 90 watt PSU also makes selections of what processor to choose very limited for 775, but an Atom system is ideal.
All things considered, I am left with an overwhelming feeling of novelty. While it is an attractive piece of hardware, the sheer size of things makes it really impractical, unless you are building the system around this chassis from the start. My thoughts are this; if you are building a mITX system, it's usually HTPC or browsing / e-mail builds. This puts them, most likely, in higher traffic areas. The open air design is great to look at, but one mistake of a spilled drink, or mischievous children's hands, I think the novelty will quickly wear off. The asking price for the Antec Mini Skeleton-90 is currently $109.99 at Newegg, plus shipping. Once I got passed the cute factor, the pricing for this product is a tad high for my wallet.