Other Girl has found the next glyph, giving the following instructions: I got a call telling me to 'be more mobile'. Well - frankly, I was a little confused, and then I figured it out! I'll let you do the last little bit of hunting for yourselves, but you need to head to the Channel 4 mobile portal - you access it by texting Mobile to 83188. This'll get you the link you'll need to find the next glyph. However, seems that you need to be in the UK for it to work - sorry Stateside/Aussie followers :(