The SLA for premium developers, I believe, only applies to channels the developer wants to utilize the SLA with, you can still develop free channels, otherwise the minimum is .99, again, I believe this to be correct.
I know you can develop either free channels or pay channels, the pay channels using the premium developers account use Roku's billing system.
Netgear WNR2000v2
Linksys WRT54G with DD-WRT Firmware acting as Client Bridge
Soundbridge M2000/M500/R1000
Roku 2 XS 3100
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It's all in the <sup>details</sup>