Jeff Lawson, Twilio   San Francisco-based startup Twilio
just scored a $70 million Series D funding round and is moving
steadily towards an IPO.   Twilio's core tech is a piece of
software code called an application programming interface (API)
that makes it easy for developers to add telephone calls and
texting to websites and mobile apps.  A business could use
Twilio to let a customer rep talk to people visiting its web
site. Or a taxi service could use it to send an SMS message to
customers letting them know what time their rides will arrive.
So far, Twilio has struck deals with more than 1,000 telecom
carriers around the world. That's a big help because without a
service like Twilio, developers would have to make their own
deals with each carrier.  Twilio also sells some cloud services
to businesses like a "virtual call center" that routes calls to
the right people and records calls in the cloud.  With this
latest round, Twilio has raised more than $100 million in VC
funding and signed up more than 200,00