New case design (ish), held together with snap tabs and a self tapping screw. The case is thinner than the original but by no means bad quality.
Has the new kernel on it and thus does not have a DS mode (flashme DS force booting DS mode on the GBA slot whitescreened)
Memory is the standard 16 megabytes of PSRAM and 32 megabytes of NOR (I tested Mother 3 and it fit as you can see in the gallery image of it)
I can not rule out being sent a nicely selected one (it did come with a small game on the NOR, presumably as a test) but let us not be too cynical.
PCB soldering quality is far better than previous images of the new EZ4. Outside edges are a bit rough but nothing to write home about.
Battery is a new size for the EZ4 (possibly explaining the modified front case) in being a CR2025 (previously it was a VL2020 for the originals and supposedly a non rechargeable 2020 for the later models)
SDHC slot is a side facing sprung loaded one, slightly fiddly to get to.
You have some PCB shots in the gallery for fans of numbers then on the back side there is
Right hand chip
might be a datasheet. Looks like the standard NOR-SRAM combo they have used for years (though previous models might have been M6MGT321S8TP)
Left hand chip
Copyright 05 Spansion
Possibly something http://www.spansion.com/Products/Memory/Parallel-Flash/Pages/Spansion WS.aspx
Seems popular among China/HK chip suppliers, http://www.datasheetarchive.com/dl/Datasheets-IS68/DSAH00171355.pdf
would appear to be a datasheet.
The battery is right across the top side chip and I am not up for desoldering it for this. At first glance/comparing traces to my launch EZ4 it is a pretty similar chip, if it is was then http://uk.mouser.com/ProductDetail/Altera-Corporation/EPM240T100C5N/?qs=jblrfmjbeiHmgaW5DQXOiw==
is the chip in question (an altera EPM240T100C5N CPLD). If mouser are still willing to sell me one (though with a decent lead time) then it is still possible that it or a pin compatible descendant are being used.