^^HTC Wildfire. Seriously not recommended.
Hardware of these phones will last as long as you don't throw it off your balcony. The software, however, gets outdated pretty soon. This is because Google releases newer updates to Android regularly but the handset manufacturers are reluctant to update their old phones.
Currently, the Defy is running Android 2.1 & Motorola has announced an update to Android 2.2 soon. But don't be surprised if they back-out later as they've done earlier.
Samsung Ace which is selling at 15k at flipkart.com (still not available in market) runs Android 2.2.
Android 2.2 is recommended than 2.1.
For your worries regarding the SAR levels, here is a quote from the same site you listed above:
It's important to note that in publishing this list, we are in no way implying that cell phone use is harmful to your health. Research abounds, but there still is not conclusive or demonstrated evidence as to whether cell phones cause adverse health effects in humans. While some studies have found a possible link between long-term (10 years or longer) cell phone use and brain tumors, decreased sperm count, and other ailments, other research has found no such effects. The science will continue, and we will continue to monitor the results, but it can take years of exhaustive research before studies actually prove anything (if they ever do).
Also the SAR level of Defy is 1.5 which is much less than the allowed 2.0 level in Europe.
Compare it to the Indian-brand phones like Micromax, Lava, etc. which exceeds the 2.0 mark.
