No, Confab, look at the TB20 data sheet again
1200nm at MTOW, at best range speed.
I find it actually does 138kt CAS (say 155kt TAS at FL100) with an endurance of just over 8hrs, confirmed by the Shadin flowmeter. This matches the official figure but at a substantially higher power setting, because the POH doesn't have a column for LOP operation.
The Javelin jet is quoted at 1200nm plus 45 min reserves, which is about 1500nm zero-reserve range. A TB20 would have to be about 10% below MTOW to do that, i.e. full fuel and 2 non-obese adults. So I retract my earlier comparison, but only partly
I am sure it will sell. So would a mach 2 business jet with 10-20 seats, for anything under US$100M, according to a number of aircraft design houses already working on it. But it's not a useful aircraft for business and leisure travel around Europe.
It also incidentally means that Socata will have to find somebody else to promote the TB range when they restart production....