According to my calc and blockchain explorer the total Betacoin (betacoin.org) network is above 1000GH now.
https://andarazoroflove.org/explorer/betacoin/block_crawler.phpThe difficulty now is >71000, in the same time the average block time with that difficulty is 4,5 min (based on last 10 blocks) and 5,1 min (based on last 20 blocks), so total network is above 1TH.
Nice.