The best estimate for StarCraft II: Wings of Liberty so far is May-June 2 2010.

Dustin Browder, StarCraft II's lead designer, wants to go home. He's a tired bunny. He's been working on a game that's been in development since 2003 and finally, thankfully, the end is in sight: StarCraft II is gearing to launch in the first half of this year.

At least Dustin hopes so. The developer was kind enough to break off a Hard difficulty play-through last night to give us 20 minutes of his time on the phone, and talked about the monster RTS's ongoing beta, what's going on with Battle.net 2.0, StarCraft II's day one patch and tons more.

Interview by Patrick Garratt.

Another patch is out (version 0.5.0.14219B) and it seems like the Terran are receiving more buffs!

TERRAN

Engineering Bay
Infantry Armor: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.

Infantry Weapons: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.

Armory
Vehicle Plating: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.

Vehicle Weapons: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.

Ship Plating: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.

Ship Weapons: The time required for each upgrade has been reduced by 30 seconds, decreasing each upgrade time from 190/220/250 seconds to 160/190/220 seconds.

PROTOSS

Zealot
The maximum shield capacity of this unit has been decreased from 60 to 50.

Bug Fixes
Fixed a bug where the Infestor's Neural Parasite ability could cause Reapers to lose the ability to move.
Fixed an issue that could use an incorrect HDR format on some ATI cards.
Fixed a crash that could happen on some ATI cards.

Another patch (StarCraft II Beta Patch 2 (version 0.4.0.14133)) is out, and it seems the Mothership is taking another huge nerf. These seemed like significant changes, so I created a new thread instead of updating the other one.

Terran

Banshee
Cloak: This ability no longer requires Fusion Core to research.

Barracks
The build time for this building has decreased from 65 to 60.

Factory
The build time for this building has decreased from 65 to 60.

Reactor
The build time for this building has decreased from 40 to 25.

Reaper
The build time for this unit has increased from 30 to 40.
Nitro Boost: The build time for this upgrade has increased from 90 to 100.

Starport
The build time for this building has decreased from 55 to 50.

Tech Lab
The build time for this building has decreased from 30 to 25.

Protoss

Mothership
The build time for this unit has increased from 120 to 160.
The food cost of this unit has increased from 6 to 8.
The number of shots fired by this unit has decreased from 8 to 6.
The shield of this unit has decreased from 400 to 350.
The health of this unit has decreased from 400 to 350.
The acceleration of this unit has decreased from 1.3125 to 0.3125.
The deceleration of this unit has increased from 0 to 1.

Nexus
Chrono Boost: The duration of this ability has decreased from 30 to 20.

Zerg

Corruptor
The damage done by this unit has increased from 12 (+8 massive) to 12 (+10 massive).