Remove PoS (point of sale) acronym.
--- a/latest/use-cases/index.html Tue May 19 22:23:20 2015 -0400
+++ b/latest/use-cases/index.html Tue May 19 23:40:23 2015 -0400
@@ -817,8 +817,8 @@
</dd>
<dt>Motivation</dt>
<dd>
-Unifying POS interaction w/ the Web Payments architecture is vital for the
-success of this work.
+Unifying point of sale interaction w/ the Web Payments architecture is
+vital for the success of this work.
</dd>
<dt>Privacy</dt>
<dd>
@@ -885,7 +885,7 @@
</dd>
<dt>Motivation</dt>
<dd>
-Unifying how people initiate payments from email, at a Point of Sale,
+Unifying how people initiate payments from email, at a point of sale,
and via a Web site will help ensure the ubiquity of the Web payment
technology platform.
</dd>
@@ -1691,7 +1691,7 @@
</dd>
<dt>Motivation</dt>
<dd>
-Biometrics can be utilized on Point of Sale terminals, mobile, and wearable
+Biometrics can be utilized on point of sale terminals, mobile, and wearable
devices. Web payment systems based on biometrics could achieve more reliable
information security and convenience. Some forms of biometric authentication,
like facial recognition, can also be used to augment password-based