PwC report points to rushed implementation.
Top three telcos secure two-thirds of funds.
Part XIB under review.
Three-month proof of concept planned.
Impact could see equity decline by $39 million.
Enter Redmond's ongoing fight with US government.
ACCC to inquire into mobile roaming.
Says it doesn't want Apple's tax dollars.
Brings in new team of architects.
Company aware of 35 cases worldwide.