The world's smallest full-featured PC is a title held by the OQO. It's a small UMPC that's been around for a few years, and OQO was due to release a follow up, the OQO Model 02+ early this year. However, due to financial troubles and other problems for the company, it looks like the OQO Model 02+ is not going to be released any time soon.
eXpansys sold the OQO through its site, and decided to pull the Model 02+ from the website. Pre-orders for the Model 02+ were canceled due to low stock and lack of information from OQO.
Unfortunately eXpansys has taken the decision, due to uncertainties
to stock availability of the OQO Model 2+, to remove the OQO model
from our web site.
While we try to keep the information on our web site fully up to date
with the status of each product, inevitably in some cases we are not
informed that a particular item is no longer available until after we
have orders for it.
We apologise for any inconvenience.
OQO saw a change in CEO's when the CEO of OQO stepped down and was replaced by a company founder. The company is rumored to be in attempts to sell ownership. A moderator on the OQO Forums stated this:
I have been told by a few people in the know and also just from watching whats going on with OQO from reports on this forum. OQO is attempting to sell the company. It lacks the funds to keep going, cash is tight and work hours have been reduced. One has to wonder if it can still meet warranty claims as it starts to buy stock to build the 2+. I’m sorry to say this, but the 2+ might be the last OQO we see made. I don’t even think we will see it.