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Consideration on proposed architecture
zSeamless Internet access.
yProvide End-to-End security by using TLS tunneling.
yHTTP/TCP would take an advantage if content size were large.
zMarkup Language
yExperience with the deployment of i-mode.
xSince i-mode adopts subset of HTML and contents developers are familiar with it, there are many i-mode contents in the Internet.
yXHTML is expected to be the next generation markup language. And XHTML Basic is expected to be a core language for clients such as mobile phones that do not fully support of XHTML features.
zPush functionality
yWAP push is very feasible and usable in the wireless environment.
yProvide push functionality over TCP by using HTTP POST (implementing HTTP compact server on the phone, and HTTP client on the WAP Gateway).