after the finance crises not remind people about the no 1 banking country, bad idea. it will brand the product, so i a client dont like swiss products, he will pass you over if he see a swiss flag in the logo.
Mention it on the website, or in ads if you like, but dont doom the product...
Since you havn't chossen a name for the products, we have sugested fimain pronounced fi'ma'in. and its a short for financial managment and invoicing, so have have chossen a word logo, like microsoft, comodo, ect.