Effective, Low Cost but also Beautiful HWTS!

Greetings to all!
I am Susan Murcott - an environmental engineering working on HWTS at MIT. I supervise teams of graduate students - both engineers and also Sloan Business School students - and we have worked in about 8 countries now on HWTS since 1998.
I have been reading everyone's E-Conf comments this past week with great interest. So much wisdom and expertise is represented - I wish we could package it and send it out! This is truly good and important work - bringing clean water to all people everywhere - I believe this dream has eluded us in the past but it is somehow possible now! Do you feel that way? I agree that HWTS is not a silver bullet, but I also think that there is a growing consciousness - made possible by the Internet and global communications. As I have read your various comments, I have wanted to reply personally to everyone and just say thank you for the expertise and wisdom you are bringing to this exchange and thank you for caring.
I was interested in an earlier comment by Mona Greiser about aspiratioinsal products - ones consumers prominantly place in their homes proudly- my experience corroborates Mona's that low income people aspire to better products and services. Mona said that we don't know whether the Unilever filter, for example, is too expensive for poor people. But at the same time, the Pure Home Water folks in Ghana know that their customers are unwilling to pay $20 for a ceramic filter product... and that the best way to promote sales for them has been to offer a credit scheme.
I also found Arinita Shrestha's comment about marketing to the poor to be insightful - that the poor don't want products "for the poor." So we need to be producing technically effective, low cost HWTS but also beautiful products, products we would want ourselves. Products we would give our mothers on Mothers Day. Products we would give our best friend at her wedding!

I assume that most of us who are attending this EConf are drinking from piped supplies but still, I am curious what HWTS products the participants in this E-Conf are using? Which do you like best?

Susan Murcott