matti of the <a href="http://members.shaw.ca/pnhpublic/China.html">Oriental-List</a> (get it?) took some measurements on the Shanghai Airport high-speed maglev.  Very impressive:

<table class="maglev">
<tr><td>0-100 km/hr</td><td> 45 s</td></tr>
<tr><td>100-200</td><td>47 s</td></tr>
<tr><td>200-300</td><td>42 s</td></tr>
<tr><td>300-400</td><td>52 s</td></tr>
<tr><td>400-430 </td><td>20 s</td></tr>
<tr><td colspan="2">full speed from 52 s</td></tr>
<tr><td>400-300</td><td>50 s</td></tr>
<tr><td>300-200</td><td>40 s</td></tr>
<tr><td>200-100</td><td>37 s</td></tr>
<tr><td>100-0</td><td>55 s</td></tr>
<tr><th colspan="2">total time 7 min 20 s</th></tr>
</table>

Thomas has more info:

<quote>

Taxi fare Pudong airport to central Shanghai: RMB 140.

whereas

Maglev to Long Yang Road: RMB 50, plus taxi fare to central Shanghai RMB 40, or
subway for RMB 2-3 depending on destination.

Time-wise not so much gain, may be max 10-15 minutes.

Operation hours still 08:30 - 17:30.</quote>

Fifty two seconds of travel above 400km/hr sounds like fun.