It has been almost a month since introducing PIN-enabled card, has anyone got his/her card replaced with PIN-enabled card?

For my UOB yea, not for other cards yet.
It's pretty common for AmEx. Just follow their instruction.
Go to branch and fill in upgrade form.

The latest statement format has a new column added that says "Expiring Date/Tarikh Tamat Tempoh"
All lines has 31/07/2016 listed... As usual, I believe this is lousy programmer at work.

My name listed for Month 1: 29 Jan–29 Feb 2016, Month 2: 01–31 March 2016 & Month 3: 01-30 April 2016
but yet to see any RM50 x 3 in my account.

Clause 5.2
The Cashback awarded will be reflected in the Cardmembers monthly credit card statement within 4-8 weeks after the end of the campaign period
Campaign Period ended on 30-April-2016.

Mid-Year Sale Campaign [ Maybank | T&Cs ]
1 June until 31 August 2016

The Mega Sale is back! Indulge yourself this sale season and enjoy cash back with Maybank Cards.

Step 1: Register via SMS

Type SALE (space) 12-digit NRIC Number without spacing and send to 66628  (E.g. SALE 810121086011)

Step 2: Spend and earn entries to win Triple Cash Back

Prizes

Grand Prize x 5 winners
Triple Cash Back of up to RM10,000

Consolation Prize x 100 winners
RM500 Cash Back

Qualifying Entry
1x Entry for every local retail outlet, online, overseas and/or EzyPay transaction of RM50 to RM499.99
10x Qualifying Entry for every local, online, overseas or EzyPay transaction of RM500 and above
Bonus Entries: Extra 100x Entries for every transaction spend with VISA Credit Card

Terms & Conditions:
Campaign period from 1 June until 31 August 2016
Applicable to all new and existing Principal Credit and Charge Cardmembers of Maybank MasterCard, Visa or American Express issued by Maybank and Maybank Islamic.
Registration is open to Principal Cardmembers only.
Cardmembers may win one (1) prize throughout the Campaign Period.
SMS orders will be processed by randomizer program based on the entries allocated.

Received a promotional email titled "Enjoy special shopping & travel perks with your American Express Card".

What caught my eyes is that it said amex is now accepted online at TNB. Does this mean TNB has its own payment  portal?

don't bother about it. just spend as per normal n if won, treat that as bonus....free money drop from sky....

for those who don't know what to redeem with your points, and if you are also active in using tng, the best is to convert your points to mydin vouchers and use it to reload your tng card.

same method as using cc.

my sister received 3 card (mbb2 + ikhwan master) for the pin and pay via poslaju.
But I still haven't got mine. the batches is not based on area???

My mom received her PIN & PAY credit cards from Maybank back in June while I received mine in August. I've been using Maybankard 2 Cards longer than my mom. I received my Maybankard 2 Cards just one week after Maybank came out with this product.

Like others have said, all cards were delivered together via Poalaju. All cards were put in a separate sealed envelope but all envelopes containing the cards were put in a sealed transparent plastic bag.