Here's an interesting stat which I think everyone skipped: Zong is now the second largest operator in Pakistan, beating Telenor (who has been losing customers in the past several months). Jazz has also been losing customers.
The biggest gainer is Zong, followed by Ufone.
pta.gov.pk
Here's a crap graph I made from the data to show the trend of Jazz and Telenor, and Ufone and Zong:
And this is the subscriber count (and where it's switched over for Zong and Telenor):
And if Ufone and Telenor were to merge, their combined subscriber count would be:
... putting Zong back to third place again lol.