From the business perspective it doesn't make sense to spend development efforts for a product that has stopped shipping. If they really do start shipping again then they can justify spending $$$.
A lot of Roku's problem is no advertising so consumers don't know what Roku products can do for them.
They really need to come up with some application that can let Joe consumer show off his new plasma TV. Showing pictures and the ArtPaks are a start but not enough. At least the new R1000 is something that BestBuy can easily demo in the store.
The faithful will wait to see what happens in April. or May. or June. or ...
Personally, I think the marketing ploy they need to take is provide a slug to every Tweeter, etc. high end videophile store, loaded up with primo demo content. I took my linux box into my local Tweeter (it'll boot and run NFS sharing in headless mode), hooked up a PB (from their inventory) to it, ran Mplay off my linux share and streamed some content into their distribution system. The staff has floored by the quality. They were going to look into setting up their own linux box or slug, but want ME to provide the content to demo on it!