With the growing rumblings of Olympus' PRO primes on the near horizon, I got wondering why Panasonic never followed up on the 12-35 and 35-100 zooms with "X"-branded primes in a similar fashion. I would think there would be a market for such lenses, even if they weren't pursuing 1.2 lenses, as the Olympi are purported to be. The system has always lacked weathersealed primes (excluding the Olympus 60) to go with higher-end weathersealed bodies; and with competitors, like Fuji for example, now able to boast a fully weathersealed walkaround camera/lens it just seems odd that either manufacturer would let such a hole in their product lineup exist. The fact it has been this long and Panasonic never pursued this market strikes me as odd. Personally I would be all about a weathersealed, fast focusing "X" 20 1.4 or 1.2 to pay homage to the system's roots with the venerable 20 1.7. Keeping near the sensor's diagonal would allow a fairly compact design relative to maximum aperature chosen, without needing to excessively compromise optical quality. One capable, compact, high-quality all-weather walkaround to supplement one's pro zooms, supposing one was keeping within the Panasonic X family. I would think it would also sell well as a stand-alone, one-lens-to-rule-them-all type lens, much like the original 20.