Compare these two TOCs:
http://en.wikipedia.beta.wmflabs.org/wiki/Igloo
http://en.m.wikipedia.beta.wmflabs.org/wiki/Igloo (in beta mode)
The desktop one converts & to & (which is correct):
You & your mom & your dog & your shirt
The mobile one converts & to & (which is wrong):
You & your mom & your dog & your shirt
Version: unspecified
Severity: blocker