Given all the ASICs coming on board over the last few months, building a GPU miner for BTC seems like a hard sell given the difficulty and hashrate of the network. But is there still opportunity in GPU mining LTC since there isn't an ASIC-effect yet? Are there any good calculators to determine profit for LTC?
http://www.litecoinpool.org/calcASIC for LTC will not appear unless LTC becomes as successful as BTC.
LTC ASIC's will appear when it becomes profitable for someone to design, manufacture, and sell an LTC ASIC