The Efficient XML Interchange Working Group is responsible for developing ways to exchange XML documents in ways that are as efficient as is practical without compromising the interoperability of XML itself. This Working Group is not about producing a closed, proprietary or obfuscated “binary XML ”—The W3C is all about increasing interoperability! The EXI format is a compressed stream of parse events that can use an XML Schema to avoid having to transmit known information and to use native type representations. The receiver of an EXI stream doesn't have to reconstitute the original document, but can process the parse events directly as if parsing had happened, saving CPU, memory, time and bandwidth.
Holding the Charge : If you don’t discharge the spell in the round when you cast the spell, you can hold the charge indefinitely. You can continue to make touch attacks round after round. If you touch anything or anyone while holding a charge , even unintentionally, the spell discharges. If you cast another spell, the touch spell dissipates. You can touch one friend as a standard action or up to six friends as a full-round action . Alternatively, you may make a normal unarmed attack (or an attack with a natural weapon) while holding a charge . In this case, you aren’t considered armed and you provoke attacks of opportunity as normal for the attack. If your unarmed attack or natural weapon attack normally doesn’t provoke attacks of opportunity , neither does this attack. If the attack hits, you deal normal damage for your unarmed attack or natural weapon and the spell discharges. If the attack misses, you are still holding the charge.