b) the Ethereum network simply issues more GAS tokens to lower the transaction fee to a competitive level (that's my assumption but better confirm this as I'm not quite sure about how this mechanism works)
Excellent post mate
For your info: Homestead release will lower gas price by ~60% so whatever the price is, it won't kill some project.
How to lower gasprice on your miner to accept even cheaper transactions:
https://www.reddit.com/r/ethereum/comments/499a7w/gas_prices_are_already_kinda_down_to_20_shannon/