Just a quick run down on the applicable law:
1. Trade Marks Act
s34(1)(b) "
the unauthorized use of a mark which is identical or similar to the trade mark registered, in the course of trade in relation to goods or services which are so similar to the goods or services in respect of which the trade mark is registered, that in such use there exists the likelihood of deception or confusion"
The enquiry is a question of fact and in each case the visual, phonetic and/or conceptual similarity of the marks must be considered.
s34(1)(c) "
the unauthorized use in the course of trade in relation to any goods or services of a mark which is identical or similar to a trade mark registered, if such trade mark is well known in the Republic and the use of the said mark would be likely to take unfair advantage of, or be detrimental to, the distinctive character or the repute of the registered trade mark, notwithstanding the absence of confusion or deception"
Here Google must just show that their mark is well known in Republic and that the use of the other mark is likely to infringe on the reputation of the registered trade mark.
2. Passing Off (Common law)
For a passing off claim, Google would have to show that Doogle are leaning on the reputation established by Google in the brand in South Africa, by using similar wording, site design, colours, advertising, etc to create an association between the brands in the minds of the public.
3. Domain Name Disputes
A domain name registration is considered to be abusive where: circumstances indicating that the registrant is using, or has registered, the domain name in a way that leads people or businesses to believe that the domain name is registered to, operated or authorised by, or otherwise connected with the complainant;
Considering the above, I'd say Google has a reasonable case.
Whether or not Google should be threatened by Doogle is another story. But you never know how big Doogle might get one day.
It is most likely that Google just wants Doogle to make an effort to distance itself from the look and feel of Google's brand.
I wonder what the deal is with doogle.com
