Add spaces: e-LearningDevCon2010–Mikegetsthereallytechnical,heavy-liftingpresentations.

Answer: e-Learning DevCon 2010 – Mike gets the really technical, heavy-lifting presentations.

Add spaces: Youwouldendupwithamosaicofpaintingsdepictingalife,andsoonitwouldbeobviousthatsomepicturesbelongtogether,whilstothersareverydistinctlydifferent.

Answer: You would end up with a mosaic of paintings depicting a life, and soon it would be obvious that some pictures belong together, whilst others are very distinctly different.

Add spaces: Eachofthesehasitsuniquefeaturesanditislefttoyoutodecidewhichmodelsuitsyourpreference.

Answer:
Each of these has its unique features and it is left to you to decide which model suits your preference.