There are known compatibility issues between W3 Total Cache and WPtouch/WPtouch Pro. You may configure W3 Total Cache to perform well with WPtouch Pro by adding the following list of mobile user agents to its "rejected user agents" lists found under Performance > Page Cache, Performance > Minify, and Performance > CDN:
Remember to "empty all caches" under the General Setting in WP Total Cache before testing your site.
Alternatively, WP Super Cache has released a version that offers a compatibility option for the free version of WPtouch. We have found, however, that compatibility and performance seems better between WP Total Cache and WPtouch.
Please note that the pro version of WPtouch is a substantial upgrade from the free version and, as such, the free version is really only best to give an overall impression of pro version functionality. You may visit bravenewcode.com on a mobile device to see some of the additional functionality of WPtouch Pro and check out the feature comparison chart for a better idea of the differences between products. In addition, every purchase of WPtouch Pro comes with a 7-day trial period during which you will have access to our customer support forums, documentation, and our support team. During the seven day trial, if you find the product not to be satisfactory, you may request a full refund for any reason.