WAP includes the layers of WTP, WTLS and WSP. These layers are similies to TCP/IP's network layer, datalink layer, etc. However, WTLS is the security layer and could be placed in the "IP SEC" domain for this message's purposes.
Ultimately the answer is-- YES. WAP is dead. It has been dead for around 10 years. Replacements for WAP include G3/G4, CISCO's Mobile IP platform, and a few others that have surfaced. A popular replacement is to use VPN tunneling along with OpenSSL the like].
Again, WAP is dead. WAP is "not" a "browser" technology such as theo ther folks here are claiming. XHTML-MP is an "api" that can interface with WAP but it isn't WAP itself. You can place XHTML-MP on top of ANYTHING.
Why did WAP die? Carriers are dropping the packetized networking infrastructure in exchange for G3 right now. AT&T and others will no longerh ave packetized networking at the end of 2011 so those old phones you have sitting in your junk drawer will never be useful again. WAP sits on top of packetized networks. It was designed for slow, unreliable data transmission [although it does have a message classification for assured messaging]. It would be a waste of bandwidth to use WAP on G3 and G4 [when it comes out]. G5 is in the making, but it's mostly hush-hush for now.
