Please See Updated Information About WPA vs WPA2
by Grif Thomas - 8/31/09 1:52 PM
Although many type of older hardware still need to go with WPA for good connections status, for those with high security needs, see the information below.. It may be best to upgrade hardware to be more secure. You make the decision:
Moving to WPA2 is worthwhile for improved safer wireless security, even if it means purchaing new hardware.
Internet Storm Center -- WPA with TKIP done
QUOTE: Researchers in Japan describe how to perform the Beck-Tews style attack against any WPA-TKIP implementation, in under a minute. The paper and upcoming presentation have already been covered in the mainstream media. If your hardware supports it, time to consider moving to WPA with AES or WPA2.
Full 12 Page Study
Hope this helps.