Here's the link:
http://www.eu.toefl.eu/toefl-sites/toef ... no_cache=1
The ETS (TOEFL authorities) claim on their website that HO accepts TOEFL as an alternative evidence. HSMP guideline mentions that alternative english test (equivalent to IELTS 6) CAN (not WILL) be acceptable. But they may still force the candidate to write IELTS.
I have directly communicated with ETS-Europe and they reassured that I may apply with TOEFL and HO will consider it. But Home Office folks refused to comment on it. Neither did they deny it nor acknowledge it. Just a diplomatic answer "We will refer it to NARIC and if the result is positive we will accep it".
I tried to verify it with NARIC and they said "We deal in qualifications. We do not have any authority to comments on tests/certifications."
After all IELTS is governed by Cambridge (a British organization) and TOEFL is governed by ETS (An american organization).
Hence if you have a VALID TOEFL score, wait for my decision. Else write IELTS. Anyways IELTS is a cake walk. If its not then don't bother going to the UK.
!!!Don't take chances, its your hard earned money!!!