Noted iOS developer and general coffee freak Marco Arment thoroughly (1200+ words) reviewed these once on his blog. Conclusion: they don't work. http://www.mar

Noted iOS developer and general coffee freak Marco Arment thoroughly (1200+ words) reviewed these once on his blog. Conclusion: they don't work. http://www.marco.org/2011/08/10/coffee-joulies-review http://www.marco.org/2011/08/10/coffee-joulies-review