Today, Microsoft announced that they are halting the NoDo update for Samsung Omnia7 due to technical issues. According to Windows Team Blog writer Michael Stroh, the update team found a technical issue which is causing the update process to fail. This issue is not tied to a specific carrier, as these phones can be purchased unlocked/unbranded. Since early April, users have reported their phones indicating that an update being available, but upon plugging their phones into their computers, the Zune software reports that there are no additional updates available.
Some users are pointing their fingers at Microsoft, but the issues seem to be stemming from Samsung frequently changing firmware and hardware revisions on their production line, for both WP7 and Android, which despite identical model numbers, can lead to phones having different internals.
However, not all hope is lost as "the team hopes to resume update deliveries soon", though no exact timeframe listed as to when the updates will resume, other than "soon". Phone owners on the Three network in the UK are receiving updates according to Daniel Rubino of WPCentral.