Very interesting find IAS. On closer look Poet is actually under the Industry Partner section. and Synopsys is not listed as an attendee or sponsor.
Given that Synopsys is the only company (aside from BAE) that is publically known to be associated with Poet, one would expect that by the time Confab 2015 starts in May, an actual Poet industry partner would be declared.
Otherwise how else could Poet be categorized as a Confab industry partner? I'm not a big fan of randomly "connecting the dots" but this is a an interesting one.