Clarify language around discovery.
--- a/latest/use-cases/index.html Sat Apr 11 17:29:31 2015 -0400
+++ b/latest/use-cases/index.html Sat Apr 11 17:40:26 2015 -0400
@@ -1410,10 +1410,9 @@
</dd>
<dt>Motivation</dt>
<dd>
-A <a>payer</a> will most likely use multiple payment services over
-time. It is important to ensure that the payment services presented
-to them are consistent across devices, even ones that they have never used
-before.
+A <a>payer</a> will most likely use multiple digital wallets over time. It is
+important to ensure that the wallets that they use are presented to them in a
+consistent manner across devices.
</dd>
<dt>Privacy / Security</dt>
<dd>