We've been talking about this for months, but now it's official: Optimum Online has announced they'll be upgrading all existing customers to 15Mbps/2Mbps (trials were at 20Mbps). They've also unveiled two additional tiers: Optimum Online "Boost" will offer speeds of 30Mbps/2Mbps for an additional $14.95 a month ($9.95 if you're a VoIP customer), and symmetrical 50Mbps service at an as yet unmentioned price-point. According to the company's press release, all of the new speeds should be available by the middle of 2006.