XBMC! -- Posted by mjb67 on Wednesday, April 18 2012
I realise this could be a picture of anything, but it happens to be XBMC running on my ST-Ericsson Snowball.

Variations in MicroSDHC cards -- Posted by mjb67 on Thursday, April 5 2012
There is an enormous variation between memory cards. Even cards sold from the same manufacturer the same model name and number have significant hardware variations (memory geometry, drive geometry where applicable, even actual size).

I remember having the same problem with Compact Flash cards a few years ago when I was working on the RenderDrive RD6400 network appliance. Our software upgrade procedure involved flashing a disk image in the field, and we had to emergency-rewrite it as it became obvious that no single disk image would work across the hardware variations we were seeing in the CF cards.

Things have got a bit better since then, flash cards no longer emulate hard drive geometry, but there are still problems.

My Snowball is refusing to boot off my PNY 8GB card (uboot reports 'card failed to respond to voltage select'), although the card can be mounted fine after boot.

I ordered a SanDisk 16GB Class 4 card from Amazon, after checking on the uboot website that people had successfully booted with it. When it arrived, it was an unbranded card in a brown paper bag.

This is pretty typical of buying memory over the Internet. The dodgy-looking card cost £8 whereas retail sellers could easily charge £30 for one in SanDisk packaging. If it boots my Snowball I don't care too much (although I'll leave bad feedback), otherwise I'll have to return it.