I'm going to triage this, but will also mention that:
* I /think/ you only noticed this when there were some builders temporarily taken out of the rotation which made the queue get bigger
* We're working on making the existing builders work for both PPA and Ubuntu builds
* We're working on making the builders build for any architecture
The last two points there will help quite a lot, as will adding more builders as the PPA service increases in popularity.
I'm going to triage this, but will also mention that:
* I /think/ you only noticed this when there were some builders temporarily taken out of the rotation which made the queue get bigger
* We're working on making the existing builders work for both PPA and Ubuntu builds
* We're working on making the builders build for any architecture
The last two points there will help quite a lot, as will adding more builders as the PPA service increases in popularity.