Startup Camp 5 kicked off today in San Francisco at the Moscone Center. An impressive roster of attendees indicates that this conference has really gained some traction and generated interest since the first Startup Camp was held in November of 2006.

These unconferences offer enormous amounts of information and insights into new startups and give startups a great chance to show off to a well informed, influential audience.

Om Malik is reporting that Sun CEO Jonathan Schwartz hinted in the keynote that Sun and Amazon have a major initiative planned that will be announced very soon regarding cloud computing:

For Sun, the opportunities are with mid-size and large corporations — like banks, pharma and financial companies — that need to build their own clouds because they cannot use Amazon type on-demand computing due to certain legal and regulatory limitations.

This appears to be another sign that small and midscale computing is going to keep getting cheaper and may even become free for all but major businesses in the near future.

Meanwhile, enterprise customers are going to enjoy the benefits of new developments and cloud computing as innovations are applied to enterprise environments.