What is a good window car mount for the TP2?

What is a good window car mount for the TP2?

the one on ebay looks decent but does anybody own it? does it really work as good as it looks? (http://cgi.ebay.com/HTC-Touch-PRO-2-...item5634f26e16)

and what about
the one from walmart for $12.30 does anybody own this one? once again does it work as good as it looks? (http://www.walmart.com/catalog/produ...uct_id=8144080)

If you use any, post them here.

Thanks in advance!