The cell phone companies could also force install a client on phones.
- actually, this feature is on their list now, development of newer mobile OS platform includes these specification.

Networking support in Symbian OS includes:

Transmission Control Protocol (TCP)
User Datagram Protocol (UDP)
IPv4/v6 stack. The TCP/IP stack provides a plug-in architecture. Plug-ins can interact with OSI level 2, 3 and 4 components and can be installed, loaded and unloaded at runtime. IP-based Symbian OS clients such as email, HTTP, SSL, Java MIDP, SyncML over HTTP and web can use IPv6 addressing as well as IPv4 addressing, DHCP for IPv6
Internet Control Message Protocol (ICMP)
Point to Point Protocol (PPP)
Domain Name System (DNS)
dial up networking support
security protocols for secure electronic commerce: Transport Layer Security (TLS) and Secure Sockets Layer (SSL)
IPSec: IP layer protocol used to secure host-to-host or firewall-to-firewall communication. IPSec is a plug-in module to the IP stack providing tunnelling, authentication and encryption for both IPv4 and IPv6. VPN clients based on IPSec will be commercially available from Symbian partners
Telnet Protocol engine
File Transfer Protocol (FTP) engine
Ethernet support: wired interface (PCMCIA cards for WINS and on-board Ethernet chip for development board) supports 10BaseT and 100BaseTX in full or half duplex; Wireless interface (IrLAN)
RTP – Realtime protocol support.
Since the above features will be possible, remote installation, configuration and access of mobile is very possible.

More specs here - http://www.symbian.com/technology/sy...91-det.html#29

Yo!