This is just a General Observation from a user of 2 Different GPS Units.
1st a Cheapie uses Destinator 7
2nd more expensive uses IGO8
The Destinator unit didn,t come with TTS
The IGO8 unit Did.
After Many Mods,Thanks to help,and Advice,from various forums,the Destinator 7 now, has TTS VOICE, warnings,for All Favourites,Like Cameras,Toilets,Camping Grounds,Parking Lots,Kfc,Etc,Etc.
IE,"You Are Aproaching a NSW School Zone"
The IGO8 Unit has TTS Voice Warnings,of Street Names,Over Speed limits,
No Speech warning when approaching,These Poi,s,Favouites,Etc,Only Bling,Bling
I do Believe IGO8, is a Much more Polished GPS software,
Due to its much more reliable,Interface.
IE,not so many Soft Resets,compared to(Modified) Destinator 7.
If some Guru,could Combine the Best of Destinator 7,AND the Best,Of IGO8,
I believe,the Result, would be Close to the Best,we could get,For a Good GPS UNIT.
Of Course, this is Just My Opinion.