bringing up the article here for scruffs...
the English translation is not good so if there's Filipinos here, feel free to correct it...
Derek Ramsay magiging host ng Amazing Race Philippines?
Usap-usapan ngayon na napipisil ng Happy Network TV5 ang kapamilya hunk actor na si Derek Ramsay na maging host sa pinoy edition ng Amazing Race, napili diumano ang hunk actor dahil physically fit ito at naiulat na nga nuong 2011 na magiging kapatid na ito.
Wala na gaanong proyekto ang hunk actor sa kapamilya network kaya pwede na syang lumipat anumang oras na gugustuhin nya, alam nyo ba na triple ang offer ng TV5 kay Derek Ramsay at marami ang nagsasabi mga kapatid natin na makikita na sya sa TV5 soon.
Abangan na lang nating ang iba pang detalye ukol sa isyung ito tuluyan na ba syang magbababu sa abs-cbn at mapipigilan pa ba ito ng dos kung sakaling lilipat ito, ano kaya magiging desisyon ng kampo nila derek dito.

The translation reads:
Rumor has it that the Happy Network TV5 is interested to cast ABS-CBN's hunk actor Derek Ramsay as host of the Pinoy edition of The Amazing Race. They allegedly choose the hunk actor because he is physically fit and it has been reported since 2011 that he will jump ship to TV5.
Ramsay does not have many projects in the One Family Network so it would be easy for him to switch networks if he wishes to do so. Do you know that TV5 offers him triple of his current talent fee? We also hear from our sources that we will see him soon in TV5.
Let's just wait for new details about this issue on whether Ramsay will bid goodbye to ABS-CBN and whether Channel 2 would stop him from doing so. What will Derek's decision be?
(The original Tagalog article is badly-written, by the way.)
Considering the apps is in English, does that mean people outside Phillipines can also participate 
From the casting page:
http://www.mycastingnet.com/Apply/Show/MTA0Mg%3d%3d3. Both applicants must be Philippine citizens or have been a permanent resident of Philippines for at least 2 years
(Yes, foreigners can apply as long as they meet residency requirements.)