This looks like an interesting tool http://www.emailonacid.com/ We are noticing on the offers we are hosting that up to 25% of the traffic coming from our mailers is from mobile devices. We are putting a lot of effort into mobile optimizing our LPs and creatives and this tool will give us a lot of insight into that. I also think it could be a valuable resource in general for the members here. The unlimited packages are inexpensive too. I will report back on our finding in a few weeks. =)
YUp agreed, a very good tool indeed. Loading creatives with images a little-of- a-bitch but it does a really solid job of reporting errors on multiple email clients/isp, an awesome email rendering tool. Litmus is also VERY VERY GOOD! Here's a link to the original post I also did a review on it a few months back.
