Tom Anderson wrote:
On Wed, 23 Apr 2008, Jarle H Knudsen wrote:

On Wed, 23 Apr 2008 11:16:10 -0700 (PDT), Paul Weaver wrote:

Yes, and the following are the legal ways of boarding a bus:
1) Board at the front with a saver, driver takes half the saver
2) Board at the front and touch your oyster in, money is deducted
(unless it's a travelcard/capped etc)
3) Board a murderbus at the back and touch your oyster in, money is
deducted
4) Board at the front and show a paper travelcard
5) Board at the back with a valid paper or oyster travelcard and dont
touch in.
6) Outside central london you can board at the front and pay cash

From YOUR guide to fares and tickets:

Cash fares are not accepted on buses in the Pay Before You Board area
in central London, on bendy buses or on route W7.

Ha, i didn't know that. Why is the W7 a special case?

IIRC, it's the route they first trialled the no-cash thing on.