Taiwanese prepaid offers on PrePaidGSM

Thanks to our friend Yuri, who went to Taipei and tested a Taiwanese prepaid card, I made the page about Taiwan, its 6 GSM/W-CDMA operators and 4 of the 6 prepaid offers (2 of them are unavailable from their sites in English, and Taiwanese is quite hard for me to understand!).

All the information is of course here: Taiwan on PrePaidGSM.net

Here is Yuri's review about his "prepaid trip" in Taipei and there around.

There are several mobile operators in Taiwan. I was able to get prepaid card from FarEastOne, IF card (Yi-Fu card as chinese-speaking people pronounce them).
I purchased the package in one of mobile phone shops at Chang Chun Road in Taipei. Initial kit cost was 350 NT$ (rate to USD is about 32 NT$/ 1 US$). Still do not know how much funds were on balance - there is voice menu that seems very good, but chinese only... There is requirements to have 2 IDs to activate card (first was my passport number, second was embarcation card that was stapled by officer at passport check to a page with Taiwanese visa). Guys at shop make a copy of both IDs for the mobile operator. They also filled all forms for us - if you don't speak Mandarin or Taiwanese, you are out of luck to do it yourself. Cards was activated in about three hours after purchase - guys from shop faxed copies of our IDs to a processing center at once.
There is limit for one card/phone number per ID. If you have one card, you cannot use this IDs to purchase one more (you can purchase it, but it will be not activated).
Card is valid for a half year after last payment (as I understood from explanations that was in quite poor English - maybe I misunderstand something).
Refill cards are about everywhere (I purchased them at 7-Eleven shops that are everywhere) but I was forced to ask a guy at the hotel counter to activate it because of chinese-only voice menus.
Can't say anything about tariffs for now - they were for sure way lower than horrible roaming.... There are several long distance carriers of course, with different tariffs. I used 002 and 006 prefixes - quality was the same.
We were in Taipei city only, so we had no problems with coverage, but our taiwanese partners told us that FET coverage in rural areas is not so good. Chunghwa have much better countryside coverage.